DE190962C - - Google Patents

Info

Publication number
DE190962C
DE190962C DENDAT190962D DE190962DA DE190962C DE 190962 C DE190962 C DE 190962C DE NDAT190962 D DENDAT190962 D DE NDAT190962D DE 190962D A DE190962D A DE 190962DA DE 190962 C DE190962 C DE 190962C
Authority
DE
Germany
Prior art keywords
ruler
longitudinal edge
angle
side edges
line
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
DENDAT190962D
Other languages
German (de)
English (en)
Publication of DE190962C publication Critical patent/DE190962C/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
    • B43L7/00—Straightedges
    • B43L7/005—Straightedges combined with other drawing aids

Landscapes

  • Length-Measuring Instruments Using Mechanical Means (AREA)
  • Drawing Aids And Blackboards (AREA)
DENDAT190962D Active DE190962C (enrdf_load_stackoverflow)

Publications (1)

Publication Number Publication Date
DE190962C true DE190962C (enrdf_load_stackoverflow)

Family

ID=454390

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT190962D Active DE190962C (enrdf_load_stackoverflow)

Country Status (1)

Country Link
DE (1) DE190962C (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2681508A (en) * 1952-09-11 1954-06-22 Ralph A Palmer Sighting device
WO1986000578A1 (en) * 1984-07-04 1986-01-30 Eun Han Yun Combined ruler protractor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2681508A (en) * 1952-09-11 1954-06-22 Ralph A Palmer Sighting device
WO1986000578A1 (en) * 1984-07-04 1986-01-30 Eun Han Yun Combined ruler protractor

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