FR668790A - Horloge électrique - Google Patents

Horloge électrique

Info

Publication number
FR668790A
FR668790A FR668790DA FR668790A FR 668790 A FR668790 A FR 668790A FR 668790D A FR668790D A FR 668790DA FR 668790 A FR668790 A FR 668790A
Authority
FR
France
Prior art keywords
electric clock
clock
electric
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
Rene-Albert-Antoine Gence
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 FR668790A publication Critical patent/FR668790A/fr
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

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
FR668790D 1928-05-16 1928-05-16 Horloge électrique Expired FR668790A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR668790T 1928-05-16

Publications (1)

Publication Number Publication Date
FR668790A true FR668790A (fr) 1929-11-06

Family

ID=9015298

Family Applications (1)

Application Number Title Priority Date Filing Date
FR668790D Expired FR668790A (fr) 1928-05-16 1928-05-16 Horloge électrique

Country Status (1)

Country Link
FR (1) FR668790A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2574467A (en) * 1946-09-27 1951-11-13 Walton W Cushman Chronoscope

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2574467A (en) * 1946-09-27 1951-11-13 Walton W Cushman Chronoscope

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