FR480556A - Appareil perspecteur - Google Patents

Appareil perspecteur

Info

Publication number
FR480556A
FR480556A FR480556DA FR480556A FR 480556 A FR480556 A FR 480556A FR 480556D A FR480556D A FR 480556DA FR 480556 A FR480556 A FR 480556A
Authority
FR
France
Prior art keywords
perspector
perspector apparatus
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
Emile Fraysse
Joachim Elissague
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EMILE FRAYSSE
JOACHIM ELISSAGUE
Original Assignee
EMILE FRAYSSE
JOACHIM ELISSAGUE
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 by EMILE FRAYSSE, JOACHIM ELISSAGUE filed Critical EMILE FRAYSSE
Application granted granted Critical
Publication of FR480556A publication Critical patent/FR480556A/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
    • B43L13/141—Two-dimensional devices
FR480556D 1915-12-22 1915-12-22 Appareil perspecteur Expired FR480556A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR480556T 1915-12-22

Publications (1)

Publication Number Publication Date
FR480556A true FR480556A (fr) 1916-08-24

Family

ID=1517765

Family Applications (1)

Application Number Title Priority Date Filing Date
FR480556D Expired FR480556A (fr) 1915-12-22 1915-12-22 Appareil perspecteur

Country Status (1)

Country Link
FR (1) FR480556A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2667696A (en) * 1951-06-19 1954-02-02 Casper J Ackermann Proportional interpolator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2667696A (en) * 1951-06-19 1954-02-02 Casper J Ackermann Proportional interpolator

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