DE80797C - - Google Patents

Info

Publication number
DE80797C
DE80797C DENDAT80797D DE80797DA DE80797C DE 80797 C DE80797 C DE 80797C DE NDAT80797 D DENDAT80797 D DE NDAT80797D DE 80797D A DE80797D A DE 80797DA DE 80797 C DE80797 C DE 80797C
Authority
DE
Germany
Prior art keywords
capsule
focal point
bracket
pen
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
DENDAT80797D
Other languages
German (de)
English (en)
Publication of DE80797C publication Critical patent/DE80797C/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
DENDAT80797D Active DE80797C (enrdf_load_stackoverflow)

Publications (1)

Publication Number Publication Date
DE80797C true DE80797C (enrdf_load_stackoverflow)

Family

ID=353319

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT80797D Active DE80797C (enrdf_load_stackoverflow)

Country Status (1)

Country Link
DE (1) DE80797C (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2700221A (en) * 1946-01-08 1955-01-25 Leopold E Rovner Hyperbolograph instrument
US5424051A (en) * 1992-01-14 1995-06-13 Uop Process for the removal of carbon dioxide and mercaptans from a gas stream

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2700221A (en) * 1946-01-08 1955-01-25 Leopold E Rovner Hyperbolograph instrument
US5424051A (en) * 1992-01-14 1995-06-13 Uop Process for the removal of carbon dioxide and mercaptans from a gas stream

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