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WO2008065281A2 - Method of manufacturing a decoration or sign, notably for jewelry, jewelry-making or watchmaking, and a product that can be obtained from this method - Google Patents

Method of manufacturing a decoration or sign, notably for jewelry, jewelry-making or watchmaking, and a product that can be obtained from this method Download PDF

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Publication number
WO2008065281A2
WO2008065281A2 PCT/FR2007/001842 FR2007001842W WO2008065281A2 WO 2008065281 A2 WO2008065281 A2 WO 2008065281A2 FR 2007001842 W FR2007001842 W FR 2007001842W WO 2008065281 A2 WO2008065281 A2 WO 2008065281A2
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WO
WIPO (PCT)
Prior art keywords
sign
decoration
silicon
resin
jewelery
Prior art date
Application number
PCT/FR2007/001842
Other languages
French (fr)
Other versions
WO2008065281A3 (en
Inventor
Christophe Edouard
Rémy MOUILLET
Original Assignee
Sarl Atelier Maurice
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sarl Atelier Maurice filed Critical Sarl Atelier Maurice
Publication of WO2008065281A2 publication Critical patent/WO2008065281A2/en
Publication of WO2008065281A3 publication Critical patent/WO2008065281A3/en

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Classifications

    • AHUMAN NECESSITIES
    • A44HABERDASHERY; JEWELLERY
    • A44CPERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
    • A44C27/00Making jewellery or other personal adornments
    • AHUMAN NECESSITIES
    • A44HABERDASHERY; JEWELLERY
    • A44CPERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
    • A44C17/00Gems or the like
    • A44C17/02Settings for holding gems or the like, e.g. for ornaments or decorations

Definitions

  • the present invention relates to a method of manufacturing a decoration or sign intended for a visual or graphic communication, whether it is applied on a support or not, and finding particular application in the fields of jewelery, jewelery, watchmaking.
  • the applicant has thought to remedy these drawbacks and achieve this goal by the use of silicon, material particularly suitable for high precision work, allowing any freedom of creation.
  • the valorization of precious stones preferentially involves supports of colors as close as possible to white, in order to enhance them.
  • silicon turns out to be a very interesting material because of its near-white color and its mirror appearance when polished.
  • the invention covers all types of visual and graphical communication on silicon support.
  • the object of the present invention is to remedy these drawbacks and concerns for this purpose a method of manufacturing a decoration or sign, for a visual or graphic communication, on a support or not, intended in particular for the domains of jewelery, jewelery, watchmaking, characterized by the following steps: realization of the decoration or sign and / or their support from a silicon compound, setting up a protective means covering the decoration or sign and / or their support, constituted by a transparent and rigid material whose melting temperature is lower than that of silicon.
  • the invention also relates to the features which will become apparent in the course of the description which follows, and which should be considered in isolation or in all their possible technical combinations.
  • the method which will be described below relates to the manufacture of a decoration or sign for a visual or graphic communication, applied on a medium or not, intended in particular, but not exclusively, in the fields of jewelery, jewelery and leather. watchmaking.
  • the decoration or sign and / or their support are obtained, by machining, from a silicon substrate. But they could also be obtained by molding, to from a silicon powder and / or a structured silicon mold from the same techniques.
  • the decoration or sign is made of silicon and, once produced, it is placed on a support, in any material, prior to the introduction of the protection means.
  • the decoration protection means or sign in silicon consists of a transparent resin, applied at least on said decoration or sign, after placement on the support.
  • the transparent resin constituting the protection means of the decor or sign in silicon successively receives an equally transparent material such as glass or plastic.
  • the decoration protection means or sign in silicon consists of an encapsulating material, glass or plastic, creating a confinement of at least said decor or sign.
  • the decoration or sign in silicon is disposed on either side of the support, which also receives on both sides the protection means.
  • the decoration or sign made of silicon directly receives the protection means on either side of its own faces, to thereby free itself from a support.
  • the protection means is constituted by a transparent resin, but applied on both sides of the decoration or sign in silicon.
  • the thickness of the transparent and rigid material constituting the protection means of the decoration or silicon sign is determined as a function of the type of material, so as to preserve the transparency of the latter.
  • the support which is made of silicon, the latter receiving at least one decorative element or sign which may also be made of silicon or any other material, before receiving the means protection.
  • the silicon support is made in two complementary parts, each of them defining open cells, located opposite each other, embedding the decoration or pattern also in silicon or other material , while leaving it visible, the sandwich assembly thus obtained being then coated with the protection means.
  • This means can be once again a transparent resin applied to the silicon which is this time the support itself and not the decor.
  • It may also be a transparent element, glass or plastic type, allowing encapsulation without contact with the decor.
  • This application example is particularly advantageous in the realization of a gemstone paving, constituting the decor for watch dial or jewel.
  • the advantage of the method according to the invention in this latter application lies in the fact that usually the precious stones were crimped to the unit and manually, which were long and expensive operations.
  • the protection means preferably a transparent resin, is colored and / or screen printed.
  • the fixation of the silicon decoration or pattern on a support or the fixation of the decoration or pattern on a silicon support will generally be carried out by gluing, welding, overmolding, crimping, clipping, etc., the object thus obtained being embedded in a transparent resin or integrated in a transparent capsule. It may be for example a watch glass.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Adornments (AREA)

Abstract

Method of manufacturing a decoration or sign, for a visual or graphic communication, optionally on a support member, notably for the fields of jewelry, jewelry-making or watchmaking, characterized by the following steps: producing the decoration or sign and/or their support member from a silicon compound, installing a protection means covering the decoration or sign and/or their support member, which is made up of a transparent and rigid material, the melting temperature of which is less than that of silicon.

Description

PROCEDE DE FABRICATION D'UN DECOR OU SIGNE, NOTAMMENT METHOD FOR MANUFACTURING A DECOR OR SIGN, IN PARTICULAR
DESTINE A LA BIJOUTERIE, JOAILLERIE OU HORLOGERIE, ETINTENDED FOR JEWELRY, JEWELRY OR WATCHMAKING, AND
PRODUIT OBTENU A PARTIR DE CE PROCEDEPRODUCT OBTAINED FROM THIS PROCESS
La présente invention concerne un procédé de fabrication d'un décor ou signe destiné à une communication visuelle ou graphique, qu'il soit appliqué sur un support ou non, et trouvant notamment une application dans les domaines de la bijouterie, de la joaillerie, de l'horlogerie.The present invention relates to a method of manufacturing a decoration or sign intended for a visual or graphic communication, whether it is applied on a support or not, and finding particular application in the fields of jewelery, jewelery, watchmaking.
Bien entendu, ces applications ne sont pas limitatives .Of course, these applications are not limiting.
La réalisation de décor ou motif pose de nombreux problèmes dans certains domaines où la précision et le raffinement sont exigés.There are many problems with decor or pattern making in certain areas where precision and refinement are required.
C'est le cas dans les domaines précités.This is the case in the aforementioned fields.
Dans le celui de l'horlogerie, par exemple, il est connu d'effectuer le marquage des chiffres ou des index, par laquage, estampage, gravure et autres opérations qui sont toujours coûteuses et longues.In that of watchmaking, for example, it is known to perform the marking of numbers or indexes, by lacquering, stamping, etching and other operations that are always expensive and time consuming.
Pour citer un exemple d' application différente de celles énumérées ci-dessus, celle du bouton, il est connu d'appliquer sur ceux-ci des résines colorées ou une laque, après gravure laser ou estampage. II résulte d'un tel procédé un manque de finesse dans le décor réalisé.To give an example of an application different from those listed above, that of the button, it is known to apply thereon colored resins or a lacquer, after laser etching or stamping. The result of such a process is a lack of finesse in the decor.
II a donc été recherché à obtenir une plus grande finesse de décor et une plus grande diversité possible de motifs et de couleurs.It has therefore been sought to obtain a greater fineness of decoration and a greater possible diversity of patterns and colors.
Selon une première phase de la démarche inventive, la demanderesse a pensé remédier à ces inconvénients et atteindre ce but par l'utilisation du silicium, matériau se prêtant particulièrement bien à un travail de haute précision, autorisant toute liberté de création.According to a first phase of the inventive step, the applicant has thought to remedy these drawbacks and achieve this goal by the use of silicon, material particularly suitable for high precision work, allowing any freedom of creation.
On peut parler de préjugé vaincu du fait que le silicium n'a jamais été utilisé dans ces domaines, mais qu' il était réservé à la réalisation de microsystèmes ou microélectroniques, plutôt qu'à la décoration en matière de bijouterie ou horlogerie.We can speak of vanquished prejudice because silicon has never been used in these fields, but it was reserved for the production of microsystems or microelectronics, rather than decoration in the field of jewelery or watchmaking.
Plus précisément, dans le domaine de la bijouterie, la mise en valeur des pierres précieuses implique préférentiellement des supports de couleurs le plus proche possible du blanc, afin de les rehausser. Dans ce cadre d'application, le silicium s'avère être un matériau très intéressant de par sa couleur proche du blanc et son aspect miroir lorsqu'il est poli.More precisely, in the field of jewelery, the valorization of precious stones preferentially involves supports of colors as close as possible to white, in order to enhance them. In this context of application, silicon turns out to be a very interesting material because of its near-white color and its mirror appearance when polished.
Toujours dans ce cadre d'application, l'utilisation de silicium teinté par des matériaux de type oxyde de silicium, nitrure, etc. est également intéressante pour réaliser des combinaisons graphiques de décor, impossible à obtenir par des techniques conventionnelles, de par la précision des motifs accessibles, les textures, les couleurs et la répartition des processus.Still in this context of application, the use of silicon tinted by materials of the type of silicon oxide, nitride, etc. is also interesting for to make graphic combinations of scenery, impossible to obtain by conventional techniques, by the precision of the accessible motifs, the textures, the colors and the distribution of the processes.
Un autre domaine intéressant cette invention, déjà évoqué, concerne les cadrans ou bracelets de montre. En effet, le silicium et toutes ses techniques de mise en œuvre, pour les mêmes raisons que citées précédemment, est particulièrement approprié pour la réalisation de décor dans les petits espaces, délimitant les cadrans horlogers et les bracelets de montre.Another area of interest to this invention, already mentioned, concerns watch dials or wristbands. Indeed, silicon and all its implementation techniques, for the same reasons as mentioned above, is particularly appropriate for the realization of decor in small spaces, delimiting the watch dials and watch straps.
En plus de ces deux applications spécifiques, l'invention couvre tous les types de communication visuelle et graphique sur support silicium.In addition to these two specific applications, the invention covers all types of visual and graphical communication on silicon support.
Mais une difficulté restait à vaincre dans l'utilisation du silicium, du fait de la fragilité de celui-ci lors de chocs et des tensions une fois appliqué sur un support, par tous moyens.But a difficulty remained to overcome in the use of silicon, because of the fragility of it during shocks and tensions once applied to a support, by any means.
La présente invention a pour but de remédier à ces inconvénients et concerne à cet effet un procédé de fabrication d'un décor ou signe, pour une communication visuelle ou graphique, sur un support ou non, destiné notamment aux domaines de la bijouterie, de la joaillerie, de l'horlogerie, caractérisé par les étapes suivantes : réalisation du décor ou signe et/ou de leur support à partir d'un composé de silicium, mise en place d'un moyen de protection recouvrant le décor ou signe et/ou leur support, constitué par un matériau transparent et rigide dont la température de fusion est inférieure à celle du silicium.The object of the present invention is to remedy these drawbacks and concerns for this purpose a method of manufacturing a decoration or sign, for a visual or graphic communication, on a support or not, intended in particular for the domains of jewelery, jewelery, watchmaking, characterized by the following steps: realization of the decoration or sign and / or their support from a silicon compound, setting up a protective means covering the decoration or sign and / or their support, constituted by a transparent and rigid material whose melting temperature is lower than that of silicon.
L' invention concerne également les caractéristiques qui ressortiront au cours de la description qui va suivre, et qui devront être considérées isolément ou selon toutes leurs combinaisons techniques possibles.The invention also relates to the features which will become apparent in the course of the description which follows, and which should be considered in isolation or in all their possible technical combinations.
Le procédé qui va être décrit ci-après concerne la fabrication d'un décor ou signe pour une communication visuelle ou graphique, appliqué sur un support ou non, destiné notamment, mais non exclusivement, aux domaines de la bijouterie, de la joaillerie et de l'horlogerie.The method which will be described below relates to the manufacture of a decoration or sign for a visual or graphic communication, applied on a medium or not, intended in particular, but not exclusively, in the fields of jewelery, jewelery and leather. watchmaking.
Il se caractérise par les étapes suivantes : réalisation du décor ou signe et/ou de leur support à partir d'un composé de silicium, - mise en place d'un moyen de protection recouvrant le décor ou signe et/ou leur support, constitué par un matériau transparent et rigide dont la température de fusion est inférieure à celle du silicium.It is characterized by the following steps: realization of the decoration or sign and / or their support from a silicon compound, - establishment of a protective means covering the decoration or sign and / or their support, constituted by a transparent and rigid material whose melting temperature is lower than that of silicon.
Nous verrons ci-après que l'application de l'invention peut être aussi bien au niveau du décor ou du signe que de leur support, ceux-ci pouvant être dans les deux cas réalisés à partir d'un composé de silicium.We will see below that the application of the invention can be both at the decor or the sign that their support, they can be in both cases made from a silicon compound.
Le décor ou signe et/ou leur support sont obtenus, par usinage, à partir d'un substrat de silicium. Mais ils pourraient être également obtenus par moulage, à partir d'une poudre de silicium et/ou d'un moule en silicium structuré à partir des mêmes techniques.The decoration or sign and / or their support are obtained, by machining, from a silicon substrate. But they could also be obtained by molding, to from a silicon powder and / or a structured silicon mold from the same techniques.
Selon un premier exemple de réalisation, le décor ou signe est en silicium et, une fois réalisé, il est disposé sur un support, en tout matériau, préalablement à la mise en place du moyen de protection.According to a first exemplary embodiment, the decoration or sign is made of silicon and, once produced, it is placed on a support, in any material, prior to the introduction of the protection means.
Préférentiellement , le moyen de protection du décor ou signe en silicium est constitué d'une résine transparente, appliquée au moins sur ledit décor ou signe, après mise en place sur le support.Preferably, the decoration protection means or sign in silicon consists of a transparent resin, applied at least on said decoration or sign, after placement on the support.
Toujours dans l'exemple d'application d'un support ou signe à un support, la résine transparente constituant le moyen de protection du décor ou signe en silicium reçoit successivement un matériau également transparent tel que verre ou plastique.Still in the example of application of a support or sign to a support, the transparent resin constituting the protection means of the decor or sign in silicon successively receives an equally transparent material such as glass or plastic.
Selon une variante, à partir des deux modes de réalisation précédents, le moyen de protection du décor ou signe en silicium est constitué d'un matériau encapsulant, en verre ou plastique, créant un confinement d'au moins ledit décor ou signe.According to a variant, from the two previous embodiments, the decoration protection means or sign in silicon consists of an encapsulating material, glass or plastic, creating a confinement of at least said decor or sign.
Quel que soit les modes de réalisation précités, le décor ou signe en silicium est disposé de part et d'autre du support, qui reçoit également de part et d'autre les moyens de protection.Whatever the embodiments mentioned above, the decoration or sign in silicon is disposed on either side of the support, which also receives on both sides the protection means.
Sont obtenus ainsi des effets de symétrie. Selon une nouvelle variante de réalisation, le décor ou signe en silicium reçoit directement le moyen de protection de part et d'autres de ses propres faces, pour s'affranchir ainsi d'un support.Thus symmetry effects are obtained. According to a new variant embodiment, the decoration or sign made of silicon directly receives the protection means on either side of its own faces, to thereby free itself from a support.
Dans ce cas comme dans les précédents, le moyen de protection est constitué par une résine transparente, mais appliquée de part et d' autre du décor ou signe en silicium.In this case as in the previous ones, the protection means is constituted by a transparent resin, but applied on both sides of the decoration or sign in silicon.
Selon une autre caractéristique de l'invention, l'épaisseur du matériau transparent et rigide constituant le moyen de protection du décor ou signe en silicium est déterminée en fonction du type de matériau, de manière à préserver la transparence de celui-ci .According to another characteristic of the invention, the thickness of the transparent and rigid material constituting the protection means of the decoration or silicon sign is determined as a function of the type of material, so as to preserve the transparency of the latter.
Selon une variante, différente de toutes les précédentes, c'est le support qui est réalisé en silicium, celui-ci recevant au moins un élément de décor ou signe qui peut être également en silicium ou en tout autre matériau, avant de recevoir le moyen de protection.According to a variant, different from all the previous ones, it is the support which is made of silicon, the latter receiving at least one decorative element or sign which may also be made of silicon or any other material, before receiving the means protection.
Selon un exemple d'application de cette dernière caractéristique, le support en silicium est réalisé en deux parties complémentaires, chacune d'elles définissant des alvéoles ouvertes, situées en vis-à- vis, enchâssant le décor ou motif également en silicium ou autre matériau, tout en le laissant apparent, le montage en sandwich ainsi obtenu étant ensuite enrobé du moyen de protection. Ce moyen peut être encore une fois une résine transparente appliquée sur le silicium qui est cette fois le support proprement dit et non le décor.According to an exemplary application of this latter characteristic, the silicon support is made in two complementary parts, each of them defining open cells, located opposite each other, embedding the decoration or pattern also in silicon or other material , while leaving it visible, the sandwich assembly thus obtained being then coated with the protection means. This means can be once again a transparent resin applied to the silicon which is this time the support itself and not the decor.
II peut s'agir également d'un élément transparent, du type verre ou plastique, permettant l' encapsulation sans contact avec le décor.It may also be a transparent element, glass or plastic type, allowing encapsulation without contact with the decor.
Cet exemple d'application est particulièrement avantageux dans la réalisation d'un pavage de pierres précieuses, constituant le décor, pour cadran de montre ou encore pour bijou. L'avantage du procédé selon l'invention dans cette dernière application réside dans le fait qu'habituellement, les pierres précieuses étaient serties à l'unité et manuellement, ce qui étaient des opérations longues et coûteuses.This application example is particularly advantageous in the realization of a gemstone paving, constituting the decor for watch dial or jewel. The advantage of the method according to the invention in this latter application lies in the fact that usually the precious stones were crimped to the unit and manually, which were long and expensive operations.
Selon une autre caractéristique de l'invention, le moyen de protection, préférentiellement une résine transparente, est coloré et/ou sérigraphié.According to another characteristic of the invention, the protection means, preferably a transparent resin, is colored and / or screen printed.
D'une manière générale, la fixation du décor ou motif en silicium sur un support ou la fixation du décor ou motif sur un support en silicium, comme dans le dernier exemple d'application, s'effectuera d'une manière générale par collage, soudure, surmoulage, sertissage, clipage, etc., l'objet ainsi obtenu étant noyé dans une résine transparente ou intégré dans une capsule transparente. Il pourra s'agir par exemple d'un verre de montre. In a general manner, the fixation of the silicon decoration or pattern on a support or the fixation of the decoration or pattern on a silicon support, as in the last example of application, will generally be carried out by gluing, welding, overmolding, crimping, clipping, etc., the object thus obtained being embedded in a transparent resin or integrated in a transparent capsule. It may be for example a watch glass.

Claims

REVENDICATIONS
1. Procédé de fabrication d'un décor ou signe, pour une communication visuelle ou graphique, destiné notamment aux domaines de la bijouterie, de la joaillerie, de l'horlogerie, caractérisé par les étapes suivantes : réalisation du décor ou signe à partir d'un composé de silicium, mise en place d'un moyen de protection recouvrant le décor ou signe, constitué par une résine transparente et rigide, dont la température de fusion est inférieure à celle du silicium.1. A method of manufacturing a decoration or sign, for a visual or graphic communication, intended in particular for the fields of jewelery, jewelery, watchmaking, characterized by the following steps: realization of the decoration or sign from a silicon compound, setting up a protective means covering the decoration or sign, constituted by a transparent and rigid resin, whose melting temperature is lower than that of silicon.
2. Procédé selon la revendication 1, caractérisé en ce que l'épaisseur de la résine constituant le moyen de protection du décor ou signe en silicium est déterminée en fonction du type de résine, de manière à préserver la transparence de celui-ci.2. Method according to claim 1, characterized in that the thickness of the resin constituting the protection means of the decor or sign in silicon is determined according to the type of resin, so as to preserve the transparency thereof.
3. Procédé selon l'une des revendications 1 ou 2, caractérisé en ce que le décor ou signe en silicium reçoit directement la résine de protection de part et d'autres de ses propres faces.3. Method according to one of claims 1 or 2, characterized in that the decoration or silicon sign directly receives the protective resin on both sides of its own faces.
4. Procédé selon l'une des revendications 1 à 3, caractérisé en ce que la résine transparente constituant la résine de protection du décor ou signe en silicium reçoit successivement un matériau également transparent tel que verre ou plastique. 4. Method according to one of claims 1 to 3, characterized in that the transparent resin constituting the decorative protection resin or sign in silicon successively receives an equally transparent material such as glass or plastic.
5. Procédé selon l'une des revendications 1 à 4, caractérisé en ce que le décor ou signe est obtenu par usinage, à partir d'un substrat de silicium.5. Method according to one of claims 1 to 4, characterized in that the decoration or sign is obtained by machining, from a silicon substrate.
6. Procédé selon l'une des revendications 1 à 4, caractérisé en ce que le décor ou signe est obtenu par moulage, à partir d'une poudre de silicium et/ou d'un moule en silicium structuré à partir des mêmes techniques .6. Method according to one of claims 1 to 4, characterized in that the decoration or sign is obtained by molding, from a silicon powder and / or a structured silicon mold from the same techniques.
7. Procédé selon l'une des revendications 1 à 6, caractérisé en ce que le décor ou signe est en silicium et, une fois réalisé, il est disposé sur un support, en tout matériau, préalablement à la mise en place du moyen de protection constitué par la résine.7. Method according to one of claims 1 to 6, characterized in that the decoration or sign is made of silicon and, once produced, it is arranged on a support, in any material, prior to the introduction of the means of protection constituted by the resin.
8. Procédé selon l'une des revendications 1 à 7, caractérisé en ce que la résine est colorée et/ou sérigraphiée .8. Method according to one of claims 1 to 7, characterized in that the resin is colored and / or screen printed.
9. Produit de joaillerie, bijouterie, horlogerie ou marqueterie, comportant un décor ou signe appliqué selon le procédé des revendications 1 à 8. 9. Jewelery, jewelery, watchmaking or marquetry product, comprising a decoration or sign applied according to the method of claims 1 to 8.
PCT/FR2007/001842 2006-11-10 2007-11-08 Method of manufacturing a decoration or sign, notably for jewelry, jewelry-making or watchmaking, and a product that can be obtained from this method WO2008065281A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0609802 2006-11-10
FR0609802A FR2908346B1 (en) 2006-11-10 2006-11-10 METHOD FOR MANUFACTURING A DECOR OR SIGN, PARTICULARLY FOR JEWELERY, JEWELING OR WATCHMAKING, AND PRODUCT OBTAINED THEREBY

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WO2008065281A2 true WO2008065281A2 (en) 2008-06-05
WO2008065281A3 WO2008065281A3 (en) 2008-08-07

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3412575A (en) * 1966-01-18 1968-11-26 Feldman Charles Jewelry article including thin metal and dielectric films
FR2557563A1 (en) * 1983-12-28 1985-07-05 Milles Victor PROCESS FOR THE MANUFACTURE OF A HARD MASS SIMILAR TO SEMI-PRECIOUS STONES WHICH CAN BE WORKED IN THE SAME WAY AND THE STONE OBTAINED BY THIS PROCESS
US4725511A (en) * 1983-08-16 1988-02-16 Reber William L High technology decorative materials for watchfaces and fabrication of same
US4809417A (en) * 1986-01-31 1989-03-07 George Normann & Associates Method of making a multiplet jewelry product with internally embedded visual indicia

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3412575A (en) * 1966-01-18 1968-11-26 Feldman Charles Jewelry article including thin metal and dielectric films
US4725511A (en) * 1983-08-16 1988-02-16 Reber William L High technology decorative materials for watchfaces and fabrication of same
FR2557563A1 (en) * 1983-12-28 1985-07-05 Milles Victor PROCESS FOR THE MANUFACTURE OF A HARD MASS SIMILAR TO SEMI-PRECIOUS STONES WHICH CAN BE WORKED IN THE SAME WAY AND THE STONE OBTAINED BY THIS PROCESS
US4809417A (en) * 1986-01-31 1989-03-07 George Normann & Associates Method of making a multiplet jewelry product with internally embedded visual indicia

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FR2908346A1 (en) 2008-05-16
FR2908346B1 (en) 2011-01-21
WO2008065281A3 (en) 2008-08-07

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