FR422099A - Protractor of angles - Google Patents

Protractor of angles

Info

Publication number
FR422099A
FR422099A FR422099A FR422099DA FR422099A FR 422099 A FR422099 A FR 422099A FR 422099 A FR422099 A FR 422099A FR 422099D A FR422099D A FR 422099DA FR 422099 A FR422099 A FR 422099A
Authority
FR
France
Prior art keywords
protractor
angles
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
FR422099A
Other languages
French (fr)
Inventor
Joanny Lombard
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 FR422099A publication Critical patent/FR422099A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B3/00—Measuring instruments characterised by the use of mechanical techniques
    • G01B3/20—Slide gauges
FR422099A 1909-11-04 1910-11-04 Protractor of angles Expired FR422099A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE422099X 1909-11-04

Publications (1)

Publication Number Publication Date
FR422099A true FR422099A (en) 1911-03-11

Family

ID=1465078

Family Applications (1)

Application Number Title Priority Date Filing Date
FR422099A Expired FR422099A (en) 1909-11-04 1910-11-04 Protractor of angles

Country Status (1)

Country Link
FR (1) FR422099A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3315363A (en) * 1964-05-04 1967-04-25 Shiffman Jerome Measuring scale for watch crystals

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3315363A (en) * 1964-05-04 1967-04-25 Shiffman Jerome Measuring scale for watch crystals

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