[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

FR617379A - Perfectionnements apportés aux hauts-parleurs - Google Patents

Perfectionnements apportés aux hauts-parleurs

Info

Publication number
FR617379A
FR617379A FR617379DA FR617379A FR 617379 A FR617379 A FR 617379A FR 617379D A FR617379D A FR 617379DA FR 617379 A FR617379 A FR 617379A
Authority
FR
France
Prior art keywords
loudspeakers
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
Other languages
English (en)
Inventor
Philip Sweatman Hedgeland
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 filed Critical
Application granted granted Critical
Publication of FR617379A publication Critical patent/FR617379A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H04R1/028—Casings; Cabinets ; Supports therefor; Mountings therein associated with devices performing functions other than acoustics, e.g. electric candles

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR617379D 1926-06-10 1926-06-10 Perfectionnements apportés aux hauts-parleurs Expired FR617379A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR617379T 1926-06-10

Publications (1)

Publication Number Publication Date
FR617379A true FR617379A (fr) 1927-02-18

Family

ID=8982267

Family Applications (1)

Application Number Title Priority Date Filing Date
FR617379D Expired FR617379A (fr) 1926-06-10 1926-06-10 Perfectionnements apportés aux hauts-parleurs

Country Status (1)

Country Link
FR (1) FR617379A (fr)

Similar Documents

Publication Publication Date Title
FR628317A (fr) Perfectionnements aux mécanismes
FR622100A (fr) Perfectionnement aux objectifs
FR31860E (fr) Perfectionnements apportés aux phonographes
FR632004A (fr) Perfectionnements aux presses
FR617379A (fr) Perfectionnements apportés aux hauts-parleurs
FR609378A (fr) Perfectionnements aux norias
FR647833A (fr) Perfectionnements aux aéromoteurs
FR621532A (fr) Perfectionnements aux manomètres
FR619059A (fr) Perfectionnements aux cendriers
FR628063A (fr) Perfectionnements aux presses
FR612385A (fr) Perfectionnements apportés aux poupées
FR622066A (fr) Perfectionnements apportés aux immeubles
FR605808A (fr) Perfectionnements apportés aux chausse-pieds
FR605135A (fr) Perfectionnements apportés aux réveils
FR634784A (fr) Perfectionnements aux servo-freins
FR634053A (fr) Perfectionnements aux odographes
FR611864A (fr) Perfectionnements aux adressographes
FR622026A (fr) Perfectionnements aux doubloirs
FR627742A (fr) Perfectionnements aux broyeurs-pulvérisateurs
FR632071A (fr) Perfectionnements aux hydro-épailleurs
FR618821A (fr) Perfectionnements aux phonographes
FR617550A (fr) Perfectionnements aux amplificateurs
FR636021A (fr) Perfectionnements aux transmetteurs téléphoniques
FR624639A (fr) Perfectionnements aux manomètres
FR642097A (fr) Perfectionnements aux manomètres