FR930253A - Compas à ellipse - Google Patents

Compas à ellipse

Info

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
Application number
Other languages
English (en)
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.)
VENTE DES INSTR DE GEODESIE HE
Original Assignee
VENTE DES INSTR DE GEODESIE HE
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 VENTE DES INSTR DE GEODESIE HE filed Critical VENTE DES INSTR DE GEODESIE HE
Application granted granted Critical
Publication of FR930253A publication Critical patent/FR930253A/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
    • B43L11/05—Non-circular-curve-drawing instruments for drawing conic sections for drawing ellipses with gears

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR930253D 1945-07-14 1946-07-05 Compas à ellipse Expired FR930253A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH930253X 1945-07-14

Publications (1)

Publication Number Publication Date
FR930253A true FR930253A (fr) 1948-01-21

Family

ID=4548724

Family Applications (1)

Application Number Title Priority Date Filing Date
FR930253D Expired FR930253A (fr) 1945-07-14 1946-07-05 Compas à ellipse

Country Status (1)

Country Link
FR (1) FR930253A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115570907A (zh) * 2022-10-19 2023-01-06 马疆成 机械圆柱齿轮式椭圆规

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115570907A (zh) * 2022-10-19 2023-01-06 马疆成 机械圆柱齿轮式椭圆规

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