FR831831A - Appareil de dessin - Google Patents

Appareil de dessin

Info

Publication number
FR831831A
FR831831A FR831831DA FR831831A FR 831831 A FR831831 A FR 831831A FR 831831D A FR831831D A FR 831831DA FR 831831 A FR831831 A FR 831831A
Authority
FR
France
Prior art keywords
drawing device
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.)
Expired
Application number
Other languages
English (en)
Inventor
Jean Baptiste Auguste M Delign
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Application granted granted Critical
Publication of FR831831A publication Critical patent/FR831831A/fr
Expired 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
FR831831D 1938-01-10 1938-01-10 Appareil de dessin Expired FR831831A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR831831T 1938-01-10

Publications (1)

Publication Number Publication Date
FR831831A true FR831831A (fr) 1938-09-15

Family

ID=9294229

Family Applications (1)

Application Number Title Priority Date Filing Date
FR831831D Expired FR831831A (fr) 1938-01-10 1938-01-10 Appareil de dessin

Country Status (1)

Country Link
FR (1) FR831831A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2747282A (en) * 1946-09-13 1956-05-29 Earl V Ehrhardt Camera view finder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2747282A (en) * 1946-09-13 1956-05-29 Earl V Ehrhardt Camera view finder

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