DE269898C - - Google Patents

Info

Publication number
DE269898C
DE269898C DENDAT269898D DE269898DA DE269898C DE 269898 C DE269898 C DE 269898C DE NDAT269898 D DENDAT269898 D DE NDAT269898D DE 269898D A DE269898D A DE 269898DA DE 269898 C DE269898 C DE 269898C
Authority
DE
Germany
Prior art keywords
pointer
ruler
visor
eye
pencil
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
DENDAT269898D
Other languages
German (de)
English (en)
Publication of DE269898C publication Critical patent/DE269898C/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
    • B43L13/16—Devices for drawing in perspective free-hand
    • B43L13/18—Devices for drawing in perspective free-hand having optical or projecting equipment

Landscapes

  • Toys (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
DENDAT269898D Active DE269898C (enrdf_load_stackoverflow)

Publications (1)

Publication Number Publication Date
DE269898C true DE269898C (enrdf_load_stackoverflow)

Family

ID=526707

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT269898D Active DE269898C (enrdf_load_stackoverflow)

Country Status (1)

Country Link
DE (1) DE269898C (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1208505B (de) * 1960-07-22 1966-01-05 Walter Spielvogel Verfahren und Vorrichtung zum perspektivischen Zeichnen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1208505B (de) * 1960-07-22 1966-01-05 Walter Spielvogel Verfahren und Vorrichtung zum perspektivischen Zeichnen

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