FR842059A - Instrument de vérification pour montres - Google Patents

Instrument de vérification pour montres

Info

Publication number
FR842059A
FR842059A FR842059DA FR842059A FR 842059 A FR842059 A FR 842059A FR 842059D A FR842059D A FR 842059DA FR 842059 A FR842059 A FR 842059A
Authority
FR
France
Prior art keywords
watches
verification instrument
verification
instrument
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
English (en)
Inventor
Thomas Bowman Gibbs
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 FR842059A publication Critical patent/FR842059A/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
    • G04D7/00—Measuring, counting, calibrating, testing or regulating apparatus
    • G04D7/12—Timing devices for clocks or watches for comparing the rate of the oscillating member with a standard
    • G04D7/1207—Timing devices for clocks or watches for comparing the rate of the oscillating member with a standard only for measuring
    • G04D7/1235—Timing devices for clocks or watches for comparing the rate of the oscillating member with a standard only for measuring for the control mechanism only (found from outside the clockwork)

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR842059D 1937-08-16 1938-08-13 Instrument de vérification pour montres Expired FR842059A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US842059XA 1937-08-16 1937-08-16

Publications (1)

Publication Number Publication Date
FR842059A true FR842059A (fr) 1939-06-05

Family

ID=22183487

Family Applications (1)

Application Number Title Priority Date Filing Date
FR842059D Expired FR842059A (fr) 1937-08-16 1938-08-13 Instrument de vérification pour montres

Country Status (1)

Country Link
FR (1) FR842059A (fr)

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