FR930253A - Ellipse compass - Google Patents
Ellipse compassInfo
- Publication number
- FR930253A FR930253A FR930253DA FR930253A FR 930253 A FR930253 A FR 930253A FR 930253D A FR930253D A FR 930253DA FR 930253 A FR930253 A FR 930253A
- 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
- B43L11/05—Non-circular-curve-drawing instruments for drawing conic sections for drawing ellipses with gears
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH930253X | 1945-07-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR930253A true FR930253A (en) | 1948-01-21 |
Family
ID=4548724
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR930253D Expired FR930253A (en) | 1945-07-14 | 1946-07-05 | Ellipse compass |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR930253A (en) |
-
1946
- 1946-07-05 FR FR930253D patent/FR930253A/en not_active Expired
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