DE245774C - - Google Patents

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Publication number
DE245774C
DE245774C DENDAT245774D DE245774DA DE245774C DE 245774 C DE245774 C DE 245774C DE NDAT245774 D DENDAT245774 D DE NDAT245774D DE 245774D A DE245774D A DE 245774DA DE 245774 C DE245774 C DE 245774C
Authority
DE
Germany
Prior art keywords
compass
axis
elliptical
frame
drawn
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
DENDAT245774D
Other languages
German (de)
English (en)
Publication of DE245774C publication Critical patent/DE245774C/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

Landscapes

  • Toys (AREA)
DENDAT245774D Active DE245774C (enrdf_load_stackoverflow)

Publications (1)

Publication Number Publication Date
DE245774C true DE245774C (enrdf_load_stackoverflow)

Family

ID=504709

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT245774D Active DE245774C (enrdf_load_stackoverflow)

Country Status (1)

Country Link
DE (1) DE245774C (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2926423A (en) * 1957-03-18 1960-03-01 Arthur M Johnson Ellipsograph instrument
US3808691A (en) * 1972-11-29 1974-05-07 R Chase Apparatus for drawing ellipses

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2926423A (en) * 1957-03-18 1960-03-01 Arthur M Johnson Ellipsograph instrument
US3808691A (en) * 1972-11-29 1974-05-07 R Chase Apparatus for drawing ellipses

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