FR731315A - Compass for plotting conics such as, and in particular, ellipses - Google Patents

Compass for plotting conics such as, and in particular, ellipses

Info

Publication number: FR731315A
Authority: FR; France
Prior art keywords: conics; ellipses; compass; plotting; plotting conics
Prior art date: 1932-02-12
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

Inventor

Moshe Feldenkraiz

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.)

1932-02-12

Filing date

1932-02-12

Publication date

1932-09-01

1932-02-12 Application filed filed Critical

1932-09-01 Application granted granted Critical

1932-09-01 Publication of FR731315A publication Critical patent/FR731315A/en

Status Expired legal-status Critical Current

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

FR731315D 1932-02-12 1932-02-12 Compass for plotting conics such as, and in particular, ellipses Expired FR731315A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
FR731315T		1932-02-12

Publications (1)

Publication Number	Publication Date
FR731315A true FR731315A (en)	1932-09-01

Family

ID=9117806

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR731315D Expired FR731315A (en)	1932-02-12	1932-02-12	Compass for plotting conics such as, and in particular, ellipses

Country Status (1)

Country	Link
FR (1)	FR731315A (en)

1932
- 1932-02-12 FR FR731315D patent/FR731315A/en not_active Expired

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