FR490019A - Ellipsographe - Google Patents
EllipsographeInfo
- Publication number
- FR490019A FR490019A FR490019A FR490019DA FR490019A FR 490019 A FR490019 A FR 490019A FR 490019 A FR490019 A FR 490019A FR 490019D A FR490019D A FR 490019DA FR 490019 A FR490019 A FR 490019A
- Authority
- FR
- France
- Prior art keywords
- ellipsograph
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L11/00—Non-circular-curve-drawing instruments
- B43L11/02—Non-circular-curve-drawing instruments for drawing conic sections
- B43L11/04—Non-circular-curve-drawing instruments for drawing conic sections for drawing ellipses
- B43L11/055—Non-circular-curve-drawing instruments for drawing conic sections for drawing ellipses with guides
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB125199T |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR490019A true FR490019A (fr) | 1919-03-28 |
Family
ID=10006089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR490019A Expired FR490019A (fr) | 1918-05-08 | Ellipsographe |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR490019A (fr) |
| GB (1) | GB125199A (fr) |
-
0
- GB GB125199D patent/GB125199A/en active Active
-
1918
- 1918-05-08 FR FR490019A patent/FR490019A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB125199A (fr) |
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