FR900519A - Improvements to the parallel rules of drawing tables - Google Patents

Improvements to the parallel rules of drawing tables

Info

Publication number
FR900519A
FR900519A FR900519DA FR900519A FR 900519 A FR900519 A FR 900519A FR 900519D A FR900519D A FR 900519DA FR 900519 A FR900519 A FR 900519A
Authority
FR
France
Prior art keywords
drawing tables
parallel rules
rules
parallel
tables
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
French (fr)
Inventor
Leon Borame
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 FR900519A publication Critical patent/FR900519A/en
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
    • B43L13/02—Draughting machines or drawing devices for keeping parallelism
    • B43L13/04—Guides for rulers
    • B43L13/048—Guides for rulers with T-squares
FR900519D 1943-12-13 1943-12-13 Improvements to the parallel rules of drawing tables Expired FR900519A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR900519T 1943-12-13

Publications (1)

Publication Number Publication Date
FR900519A true FR900519A (en) 1945-07-02

Family

ID=9396017

Family Applications (1)

Application Number Title Priority Date Filing Date
FR900519D Expired FR900519A (en) 1943-12-13 1943-12-13 Improvements to the parallel rules of drawing tables

Country Status (1)

Country Link
FR (1) FR900519A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3826006A (en) * 1971-05-13 1974-07-30 E Rushin Tri-square drawing board

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3826006A (en) * 1971-05-13 1974-07-30 E Rushin Tri-square drawing board

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