FR936199A - Semi-prismatic ruler avoiding stains and distorted lines - Google Patents

Semi-prismatic ruler avoiding stains and distorted lines

Info

Publication number
FR936199A
FR936199A FR936199DA FR936199A FR 936199 A FR936199 A FR 936199A FR 936199D A FR936199D A FR 936199DA FR 936199 A FR936199 A FR 936199A
Authority
FR
France
Prior art keywords
ruler
prismatic
semi
distorted lines
avoiding stains
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
Georges-Francois Rabec
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 FR936199A publication Critical patent/FR936199A/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
    • B43L7/00—Straightedges
FR936199D 1946-11-20 1946-11-20 Semi-prismatic ruler avoiding stains and distorted lines Expired FR936199A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR936199T 1946-11-20

Publications (1)

Publication Number Publication Date
FR936199A true FR936199A (en) 1948-07-12

Family

ID=9457254

Family Applications (1)

Application Number Title Priority Date Filing Date
FR936199D Expired FR936199A (en) 1946-11-20 1946-11-20 Semi-prismatic ruler avoiding stains and distorted lines

Country Status (1)

Country Link
FR (1) FR936199A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1002661B (en) * 1954-08-23 1957-02-14 Ives Marie Le Flem School or office rule
US3398447A (en) * 1967-05-25 1968-08-27 Gregory S. Dolgorukov Method of making a draftsman's straightedge

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1002661B (en) * 1954-08-23 1957-02-14 Ives Marie Le Flem School or office rule
US3398447A (en) * 1967-05-25 1968-08-27 Gregory S. Dolgorukov Method of making a draftsman's straightedge

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