CH131377A - Elliptical compass. - Google Patents

Elliptical compass.

Info

Publication number
CH131377A
CH131377A CH131377DA CH131377A CH 131377 A CH131377 A CH 131377A CH 131377D A CH131377D A CH 131377DA CH 131377 A CH131377 A CH 131377A
Authority
CH
Switzerland
Prior art keywords
elliptical compass
compass
elliptical
Prior art date
Application number
Other languages
German (de)
Inventor
Johann Guenther
Johannes Saupe
Original Assignee
Johann Guenther
Johannes Saupe
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 Johann Guenther, Johannes Saupe filed Critical Johann Guenther
Publication of CH131377A publication Critical patent/CH131377A/en

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
CH131377D 1928-01-23 1928-01-07 Elliptical compass. CH131377A (en)

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
CH131377A true CH131377A (en) 1929-02-15

Family

ID=9733834

Family Applications (1)

Application Number Title Priority Date Filing Date
CH131377D CH131377A (en) 1928-01-23 1928-01-07 Elliptical compass.

Country Status (4)

Country Link
BE (1) BE347916A (en)
CH (1) CH131377A (en)
FR (1) FR646998A (en)
GB (1) GB291324A (en)

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 (en) * 1989-03-20 1991-07-03 Ilca Spa COMPASSO, PARTICULARLY FOR DESIGNERS.

Also Published As

Publication number Publication date
BE347916A (en)
GB291324A (en) 1928-05-31
FR646998A (en) 1928-11-19

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