FR667339A - Electro-magnetic clockwork movement - Google Patents

Electro-magnetic clockwork movement

Info

Publication number
FR667339A
FR667339A FR667339DA FR667339A FR 667339 A FR667339 A FR 667339A FR 667339D A FR667339D A FR 667339DA FR 667339 A FR667339 A FR 667339A
Authority
FR
France
Prior art keywords
electro
magnetic
clockwork movement
clockwork
movement
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)
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.)
PETITS FILS DE GEISMAR
Original Assignee
PETITS FILS DE GEISMAR
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 PETITS FILS DE GEISMAR filed Critical PETITS FILS DE GEISMAR
Application granted granted Critical
Publication of FR667339A publication Critical patent/FR667339A/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
    • G04C3/04—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 balance
    • G04C3/06—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 balance using electromagnetic coupling between electric power source and balance

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • General Physics & Mathematics (AREA)
FR667339D 1928-04-13 1928-04-13 Electro-magnetic clockwork movement Expired FR667339A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR667339T 1928-04-13

Publications (1)

Publication Number Publication Date
FR667339A true FR667339A (en) 1929-10-15

Family

ID=9014339

Family Applications (1)

Application Number Title Priority Date Filing Date
FR667339D Expired FR667339A (en) 1928-04-13 1928-04-13 Electro-magnetic clockwork movement

Country Status (1)

Country Link
FR (1) FR667339A (en)

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