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
GB186222A (en) 1922-09-28
DE346073C (en)

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