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FR767359A - Synchronous time device - Google Patents

Synchronous time device

Info

Publication number
FR767359A
FR767359A FR767359DA FR767359A FR 767359 A FR767359 A FR 767359A FR 767359D A FR767359D A FR 767359DA FR 767359 A FR767359 A FR 767359A
Authority
FR
France
Prior art keywords
time device
synchronous time
synchronous
time
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
Maurice Philippe Favre-Bulle
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 FR767359A publication Critical patent/FR767359A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
    • G04C3/08—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically
    • G04C3/10—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically driven by electromagnetic means
    • G04C3/101—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically driven by electromagnetic means constructional details
    • G04C3/107—Controlling frequency or amplitude of the oscillating system

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
FR767359D 1933-04-10 1933-04-10 Synchronous time device Expired FR767359A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR767359T 1933-04-10

Publications (1)

Publication Number Publication Date
FR767359A true FR767359A (en) 1934-07-17

Family

ID=9183824

Family Applications (1)

Application Number Title Priority Date Filing Date
FR767359D Expired FR767359A (en) 1933-04-10 1933-04-10 Synchronous time device

Country Status (1)

Country Link
FR (1) FR767359A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2929196A (en) * 1956-03-12 1960-03-22 Bulova Watch Co Inc Electric timepiece
US2949727A (en) * 1953-06-19 1960-08-23 Bulova Watch Co Inc Electric timepiece
US2960817A (en) * 1955-05-12 1960-11-22 Bulova Watch Co Inc Electrical timepiece
US3057147A (en) * 1956-07-30 1962-10-09 Bulova Watch Co Inc Motion converter
US3070951A (en) * 1956-10-11 1963-01-01 Bulova Watch Co Inc Frequency-adjustable tuning fork type vibrator for an electrically energized timepiece

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2949727A (en) * 1953-06-19 1960-08-23 Bulova Watch Co Inc Electric timepiece
US2960817A (en) * 1955-05-12 1960-11-22 Bulova Watch Co Inc Electrical timepiece
US2929196A (en) * 1956-03-12 1960-03-22 Bulova Watch Co Inc Electric timepiece
US3057147A (en) * 1956-07-30 1962-10-09 Bulova Watch Co Inc Motion converter
US3070951A (en) * 1956-10-11 1963-01-01 Bulova Watch Co Inc Frequency-adjustable tuning fork type vibrator for an electrically energized timepiece

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