DE239223C - - Google Patents

Info

Publication number
DE239223C
DE239223C DENDAT239223D DE239223DA DE239223C DE 239223 C DE239223 C DE 239223C DE NDAT239223 D DENDAT239223 D DE NDAT239223D DE 239223D A DE239223D A DE 239223DA DE 239223 C DE239223 C DE 239223C
Authority
DE
Germany
Prior art keywords
compass
leg
circumferential
elliptical
frame
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
DENDAT239223D
Other languages
German (de)
English (en)
Publication of DE239223C publication Critical patent/DE239223C/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
    • B43L11/055—Non-circular-curve-drawing instruments for drawing conic sections for drawing ellipses with guides

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
DENDAT239223D Active DE239223C (cg-RX-API-DMAC7.html)

Publications (1)

Publication Number Publication Date
DE239223C true DE239223C (cg-RX-API-DMAC7.html)

Family

ID=498684

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT239223D Active DE239223C (cg-RX-API-DMAC7.html)

Country Status (1)

Country Link
DE (1) DE239223C (cg-RX-API-DMAC7.html)

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