FR835718A - Instrument de vérification pour montres - Google Patents

Instrument de vérification pour montres

Info

Publication number
FR835718A
FR835718A FR835718DA FR835718A FR 835718 A FR835718 A FR 835718A FR 835718D A FR835718D A FR 835718DA FR 835718 A FR835718 A FR 835718A
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 B 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 FR835718A publication Critical patent/FR835718A/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
    • G04D7/1214—Timing devices for clocks or watches for comparing the rate of the oscillating member with a standard only for measuring for complete clockworks
    • G04D7/1221—Timing devices for clocks or watches for comparing the rate of the oscillating member with a standard only for measuring for complete clockworks with recording, e.g. vibrograph
    • G04D7/1228—Devices for facilitating the reading or the interpretation of the recording

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR835718D 1937-03-25 1938-03-25 Instrument de vérification pour montres Expired FR835718A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US835718XA 1937-03-25 1937-03-25

Publications (1)

Publication Number Publication Date
FR835718A true FR835718A (fr) 1938-12-29

Family

ID=22179207

Family Applications (1)

Application Number Title Priority Date Filing Date
FR835718D Expired FR835718A (fr) 1937-03-25 1938-03-25 Instrument de vérification pour montres

Country Status (1)

Country Link
FR (1) FR835718A (fr)

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