FR490019A - Ellipsograph - Google Patents

Ellipsograph

Info

Publication number
FR490019A
FR490019A FR490019A FR490019DA FR490019A FR 490019 A FR490019 A FR 490019A FR 490019 A FR490019 A FR 490019A FR 490019D A FR490019D A FR 490019DA FR 490019 A FR490019 A FR 490019A
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
FR490019A
Other languages
French (fr)
Inventor
Matthew Clarke
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
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of FR490019A publication Critical patent/FR490019A/en
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)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
FR490019A 1918-05-08 Ellipsograph Expired FR490019A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB125199T

Publications (1)

Publication Number Publication Date
FR490019A true FR490019A (en) 1919-03-28

Family

ID=10006089

Family Applications (1)

Application Number Title Priority Date Filing Date
FR490019A Expired FR490019A (en) 1918-05-08 Ellipsograph

Country Status (2)

Country Link
FR (1) FR490019A (en)
GB (1) GB125199A (en)

Also Published As

Publication number Publication date
GB125199A (en)

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