FR472364A - Variable curvature ruler - Google Patents

Variable curvature ruler

Info

Publication number
FR472364A
FR472364A FR472364DA FR472364A FR 472364 A FR472364 A FR 472364A FR 472364D A FR472364D A FR 472364DA FR 472364 A FR472364 A FR 472364A
Authority
FR
France
Prior art keywords
ruler
variable curvature
curvature
variable
curvature ruler
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
Chester Arthur Finch
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR472364A publication Critical patent/FR472364A/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
    • B43L13/20—Curve rulers or templets
    • B43L13/22—Adjustable curve rulers
FR472364D 1914-05-19 1914-05-19 Variable curvature ruler Expired FR472364A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR472364T 1914-05-19

Publications (1)

Publication Number Publication Date
FR472364A true FR472364A (en) 1914-12-03

Family

ID=1510544

Family Applications (1)

Application Number Title Priority Date Filing Date
FR472364D Expired FR472364A (en) 1914-05-19 1914-05-19 Variable curvature ruler

Country Status (1)

Country Link
FR (1) FR472364A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1207097B (en) * 1957-10-16 1965-12-16 Karl Fortwaengler Adjustable curve ruler
FR2550732A1 (en) * 1983-08-17 1985-02-22 Steinhard Robert Multipurpose drawing rule

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1207097B (en) * 1957-10-16 1965-12-16 Karl Fortwaengler Adjustable curve ruler
FR2550732A1 (en) * 1983-08-17 1985-02-22 Steinhard Robert Multipurpose drawing rule

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