FR731094A - Appareil pour la vérification des montres - Google Patents

Appareil pour la vérification des montres

Info

Publication number
FR731094A
FR731094A FR731094DA FR731094A FR 731094 A FR731094 A FR 731094A FR 731094D A FR731094D A FR 731094DA FR 731094 A FR731094 A FR 731094A
Authority
FR
France
Prior art keywords
watches
checking
checking watches
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)
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Application granted granted Critical
Publication of FR731094A publication Critical patent/FR731094A/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)
    • G04D7/1242—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) for measuring amplitude

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR731094D 1931-02-07 1932-02-05 Appareil pour la vérification des montres Expired FR731094A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP731094X 1931-02-07

Publications (1)

Publication Number Publication Date
FR731094A true FR731094A (fr) 1932-08-29

Family

ID=13508776

Family Applications (1)

Application Number Title Priority Date Filing Date
FR731094D Expired FR731094A (fr) 1931-02-07 1932-02-05 Appareil pour la vérification des montres

Country Status (1)

Country Link
FR (1) FR731094A (fr)

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