BE347916A - - Google Patents

Info

Publication number
BE347916A
BE347916A BE347916DA BE347916A BE 347916 A BE347916 A BE 347916A BE 347916D A BE347916D A BE 347916DA BE 347916 A BE347916 A BE 347916A
Authority
BE
Belgium
Application number
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.)
Publication of BE347916A publication Critical patent/BE347916A/xx

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
    • B43L11/041—Non-circular-curve-drawing instruments for drawing conic sections for drawing ellipses by means of a compass
BE347916D 1928-01-23 BE347916A (US06534493-20030318-C00166.png)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB211328A GB291324A (en) 1928-01-23 1928-01-23 Improved ellipsograph

Publications (1)

Publication Number Publication Date
BE347916A true BE347916A (US06534493-20030318-C00166.png)

Family

ID=9733834

Family Applications (1)

Application Number Title Priority Date Filing Date
BE347916D BE347916A (US06534493-20030318-C00166.png) 1928-01-23

Country Status (4)

Country Link
BE (1) BE347916A (US06534493-20030318-C00166.png)
CH (1) CH131377A (US06534493-20030318-C00166.png)
FR (1) FR646998A (US06534493-20030318-C00166.png)
GB (1) GB291324A (US06534493-20030318-C00166.png)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2493229A (en) * 1948-08-26 1950-01-03 Dibrell Instrument for drawing ellipses or the like
US2707831A (en) * 1951-12-18 1955-05-10 Lawrence B Rial Ellipse-drawing compass
IT1228671B (it) * 1989-03-20 1991-07-03 Ilca Spa Compasso, particolarmente per disegnatori.

Also Published As

Publication number Publication date
FR646998A (fr) 1928-11-19
CH131377A (de) 1929-02-15
GB291324A (en) 1928-05-31

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