FR853625A - Device applicable to rulers to facilitate the drawing of parallel lines - Google Patents

Device applicable to rulers to facilitate the drawing of parallel lines

Info

Publication number
FR853625A
FR853625A FR853625DA FR853625A FR 853625 A FR853625 A FR 853625A FR 853625D A FR853625D A FR 853625DA FR 853625 A FR853625 A FR 853625A
Authority
FR
France
Prior art keywords
rulers
facilitate
parallel lines
device applicable
applicable
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
Ernst Alfred Clementz
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 FR853625A publication Critical patent/FR853625A/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
FR853625D 1938-04-29 1939-04-28 Device applicable to rulers to facilitate the drawing of parallel lines Expired FR853625A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE853625X 1938-04-29

Publications (1)

Publication Number Publication Date
FR853625A true FR853625A (en) 1940-03-23

Family

ID=20362743

Family Applications (1)

Application Number Title Priority Date Filing Date
FR853625D Expired FR853625A (en) 1938-04-29 1939-04-28 Device applicable to rulers to facilitate the drawing of parallel lines

Country Status (1)

Country Link
FR (1) FR853625A (en)

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