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Compagnie Francaise Thomson Houston SA
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Compagnie Francaise Thomson Houston SA
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Publication of FR666689ApublicationCriticalpatent/FR666689A/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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Physics & Mathematics
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General Physics & Mathematics
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FR666689D1927-11-181928-11-14Perfectionnements aux mécanismes d'horlogerie à commande électrique
ExpiredFR666689A
(fr)