DE275755C - - Google Patents

Info

Publication number
DE275755C
DE275755C DENDAT275755D DE275755DA DE275755C DE 275755 C DE275755 C DE 275755C DE NDAT275755 D DENDAT275755 D DE NDAT275755D DE 275755D A DE275755D A DE 275755DA DE 275755 C DE275755 C DE 275755C
Authority
DE
Germany
Prior art keywords
edge
ruler
guide
radius
edges
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
DENDAT275755D
Other languages
German (de)
English (en)
Publication of DE275755C publication Critical patent/DE275755C/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
    • B43L13/00—Drawing instruments, or writing or drawing appliances or accessories not otherwise provided for
    • B43L13/14—Devices for drawing in perspective
    • B43L13/141—Two-dimensional devices
    • B43L13/146—Squares

Landscapes

  • Drawing Aids And Blackboards (AREA)
DENDAT275755D Active DE275755C (online.php)

Publications (1)

Publication Number Publication Date
DE275755C true DE275755C (online.php)

Family

ID=532021

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT275755D Active DE275755C (online.php)

Country Status (1)

Country Link
DE (1) DE275755C (online.php)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2515357A (en) * 1946-12-20 1950-07-18 Reeves George Warren Drawing instrument

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2515357A (en) * 1946-12-20 1950-07-18 Reeves George Warren Drawing instrument

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