FR448366A - Compas à ellipses - Google Patents
Compas à ellipsesInfo
- Publication number
- FR448366A FR448366A FR448366DA FR448366A FR 448366 A FR448366 A FR 448366A FR 448366D A FR448366D A FR 448366DA FR 448366 A FR448366 A FR 448366A
- Authority
- FR
- France
- Prior art keywords
- ellipse compass
- compass
- ellipse
- 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
- B43L11/041—Non-circular-curve-drawing instruments for drawing conic sections for drawing ellipses by means of a compass
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR448366T | 1912-09-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR448366A true FR448366A (fr) | 1913-01-29 |
Family
ID=1488987
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR448366D Expired FR448366A (fr) | 1912-09-16 | 1912-09-16 | Compas à ellipses |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR448366A (fr) |
-
1912
- 1912-09-16 FR FR448366D patent/FR448366A/fr not_active Expired
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