CH96887A - Elliptical compass. - Google Patents

Elliptical compass.

Info

Publication number
CH96887A
CH96887A CH96887DA CH96887A CH 96887 A CH96887 A CH 96887A CH 96887D A CH96887D A CH 96887DA CH 96887 A CH96887 A CH 96887A
Authority
CH
Switzerland
Prior art keywords
elliptical compass
compass
elliptical
Prior art date
Application number
Other languages
German (de)
Inventor
Firma O Ullmann
Original Assignee
O Ullmann Fa
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 O Ullmann Fa filed Critical O Ullmann Fa
Publication of CH96887A publication Critical patent/CH96887A/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
    • B43L11/045—Non-circular-curve-drawing instruments for drawing conic sections for drawing ellipses with cords or like flexible elements
CH96887D 1921-08-09 1921-07-26 Elliptical compass. CH96887A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2115721A GB186222A (en) 1921-08-09 1921-08-09 An improved instrument for drawing ellipses

Publications (1)

Publication Number Publication Date
CH96887A true CH96887A (en) 1922-11-16

Family

ID=10158125

Family Applications (1)

Application Number Title Priority Date Filing Date
CH96887D CH96887A (en) 1921-08-09 1921-07-26 Elliptical compass.

Country Status (3)

Country Link
CH (1) CH96887A (en)
DE (1) DE346073C (en)
GB (1) GB186222A (en)

Also Published As

Publication number Publication date
DE346073C (en)
GB186222A (en) 1922-09-28

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