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CT TECH de l IND HORLOGERE
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CT TECH de l IND HORLOGERE
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Publication of FR68237EpublicationCriticalpatent/FR68237E/en
G04C1/04—Winding mechanical clocks electrically by electric motors with rotating or with reciprocating movement
G04C1/06—Winding mechanical clocks electrically by electric motors with rotating or with reciprocating movement winding-up springs
G04C1/065—Winding mechanical clocks electrically by electric motors with rotating or with reciprocating movement winding-up springs by continuous rotating movement
FR68237D1955-10-171955-10-17
Improvements to time devices
ExpiredFR68237E
(en)