DE159085C - - Google Patents

Info

Publication number
DE159085C
DE159085C DENDAT159085D DE159085DA DE159085C DE 159085 C DE159085 C DE 159085C DE NDAT159085 D DENDAT159085 D DE NDAT159085D DE 159085D A DE159085D A DE 159085DA DE 159085 C DE159085 C DE 159085C
Authority
DE
Germany
Prior art keywords
ruler
parts
tips
springs
adjustable
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
DENDAT159085D
Other languages
German (de)
English (en)
Publication of DE159085C publication Critical patent/DE159085C/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

Landscapes

  • Drawing Aids And Blackboards (AREA)
DENDAT159085D Active DE159085C (ja)

Publications (1)

Publication Number Publication Date
DE159085C true DE159085C (ja)

Family

ID=425200

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT159085D Active DE159085C (ja)

Country Status (1)

Country Link
DE (1) DE159085C (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3473228A (en) * 1967-05-19 1969-10-21 Walter Erich Hortmann Precision drafting apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3473228A (en) * 1967-05-19 1969-10-21 Walter Erich Hortmann Precision drafting apparatus

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