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ELECTRIC SON
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ELECTRIC SON
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Publication of FR712688ApublicationCriticalpatent/FR712688A/fr
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
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FR712688D1931-03-051931-03-05Dispositif de montage électrique pour pendules
ExpiredFR712688A
(fr)