DE97668C - - Google Patents

Info

Publication number
DE97668C
DE97668C DENDAT97668D DE97668DA DE97668C DE 97668 C DE97668 C DE 97668C DE NDAT97668 D DENDAT97668 D DE NDAT97668D DE 97668D A DE97668D A DE 97668DA DE 97668 C DE97668 C DE 97668C
Authority
DE
Germany
Prior art keywords
involute
base circle
forms
draftsman
tangent
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
DENDAT97668D
Other languages
German (de)
English (en)
Publication of DE97668C publication Critical patent/DE97668C/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
    • B43L11/08—Non-circular-curve-drawing instruments for drawing involutes

Landscapes

  • Sheet Holders (AREA)
DENDAT97668D Active DE97668C (OSRAM)

Publications (1)

Publication Number Publication Date
DE97668C true DE97668C (OSRAM)

Family

ID=368698

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT97668D Active DE97668C (OSRAM)

Country Status (1)

Country Link
DE (1) DE97668C (OSRAM)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2923368A (en) * 1955-06-13 1960-02-02 Sun Oil Co Method and apparatus for seismic prospecting
FR2556655A1 (fr) * 1983-12-19 1985-06-21 Menez Jean Michel Traceur de developpante de cercle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2923368A (en) * 1955-06-13 1960-02-02 Sun Oil Co Method and apparatus for seismic prospecting
FR2556655A1 (fr) * 1983-12-19 1985-06-21 Menez Jean Michel Traceur de developpante de cercle

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