FR977267A - Proportion rule - Google Patents

Proportion rule

Info

Publication number
FR977267A
FR977267A FR977267DA FR977267A FR 977267 A FR977267 A FR 977267A FR 977267D A FR977267D A FR 977267DA FR 977267 A FR977267 A FR 977267A
Authority
FR
France
Prior art keywords
proportion rule
rule
proportion
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
Debeury
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 FR977267A publication Critical patent/FR977267A/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
    • B43L13/10—Pantographic instruments for copying, enlarging, or diminishing
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/26—Measuring arrangements characterised by the use of mechanical techniques for measuring areas, e.g. planimeters
FR977267D 1948-11-05 1948-11-05 Proportion rule Expired FR977267A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR977267T 1948-11-05

Publications (1)

Publication Number Publication Date
FR977267A true FR977267A (en) 1951-03-29

Family

ID=9519563

Family Applications (1)

Application Number Title Priority Date Filing Date
FR977267D Expired FR977267A (en) 1948-11-05 1948-11-05 Proportion rule

Country Status (1)

Country Link
FR (1) FR977267A (en)

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