FR430021A - Ellipsographe - Google Patents

Ellipsographe

Info

Publication number
FR430021A
FR430021A FR430021DA FR430021A FR 430021 A FR430021 A FR 430021A FR 430021D A FR430021D A FR 430021DA FR 430021 A FR430021 A FR 430021A
Authority
FR
France
Prior art keywords
ellipsograph
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
Louis Rossi
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 FR430021A publication Critical patent/FR430021A/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
    • B43L11/055—Non-circular-curve-drawing instruments for drawing conic sections for drawing ellipses with guides

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR430021D 1911-05-22 1911-05-22 Ellipsographe Expired FR430021A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR430021T 1911-05-22

Publications (1)

Publication Number Publication Date
FR430021A true FR430021A (fr) 1911-10-06

Family

ID=1472307

Family Applications (1)

Application Number Title Priority Date Filing Date
FR430021D Expired FR430021A (fr) 1911-05-22 1911-05-22 Ellipsographe

Country Status (1)

Country Link
FR (1) FR430021A (fr)

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