DE346073C - - Google Patents

Info

Publication number
DE346073C
DE346073C DENDAT346073D DE346073DA DE346073C DE 346073 C DE346073 C DE 346073C DE NDAT346073 D DENDAT346073 D DE NDAT346073D DE 346073D A DE346073D A DE 346073DA DE 346073 C DE346073 C DE 346073C
Authority
DE
Germany
Prior art keywords
compass
cord
arm
eye
legs
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.)
Active
Application number
DENDAT346073D
Other languages
German (de)
English (en)
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 DE346073C publication Critical patent/DE346073C/de
Active 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
    • B43L11/045—Non-circular-curve-drawing instruments for drawing conic sections for drawing ellipses with cords or like flexible elements

Landscapes

  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
  • Road Signs Or Road Markings (AREA)
DENDAT346073D 1921-08-09 Active DE346073C (en(2012))

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
DE346073C true DE346073C (en(2012))

Family

ID=10158125

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT346073D Active DE346073C (en(2012)) 1921-08-09

Country Status (3)

Country Link
CH (1) CH96887A (en(2012))
DE (1) DE346073C (en(2012))
GB (1) GB186222A (en(2012))

Also Published As

Publication number Publication date
GB186222A (en) 1922-09-28
CH96887A (de) 1922-11-16

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