FR464238A - Compas ellipsographe - Google Patents

Compas ellipsographe

Info

Publication number
FR464238A
FR464238A FR464238DA FR464238A FR 464238 A FR464238 A FR 464238A FR 464238D A FR464238D A FR 464238DA FR 464238 A FR464238 A FR 464238A
Authority
FR
France
Prior art keywords
ellipsograph
compass
ellipsograph compass
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
Edouard Torossian
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 by Individual filed Critical Individual
Application granted granted Critical
Publication of FR464238A publication Critical patent/FR464238A/fr
Expired legal-status Critical Current

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
    • B43L11/045—Non-circular-curve-drawing instruments for drawing conic sections for drawing ellipses with cords or like flexible elements
FR464238D 1913-01-08 1913-01-08 Compas ellipsographe Expired FR464238A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR464238T 1913-01-08

Publications (1)

Publication Number Publication Date
FR464238A true FR464238A (fr) 1914-03-16

Family

ID=1503229

Family Applications (1)

Application Number Title Priority Date Filing Date
FR464238D Expired FR464238A (fr) 1913-01-08 1913-01-08 Compas ellipsographe

Country Status (1)

Country Link
FR (1) FR464238A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2650429A (en) * 1952-06-21 1953-09-01 Debs Victor Curve scriber
CN110561951A (zh) * 2019-09-23 2019-12-13 西南交通大学 一种便捷型椭圆规

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2650429A (en) * 1952-06-21 1953-09-01 Debs Victor Curve scriber
CN110561951A (zh) * 2019-09-23 2019-12-13 西南交通大学 一种便捷型椭圆规

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