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Leon Hatot SA France
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Leon Hatot SA France
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Application filed by Leon Hatot SA FrancefiledCriticalLeon Hatot SA France
Application grantedgrantedCritical
Publication of FR30277EpublicationCriticalpatent/FR30277E/fr
G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
G04C3/02—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 pendulum
G04C3/027—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 pendulum using electromagnetic coupling between electric power source and pendulum
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Engineering & Computer Science
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Power Engineering
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General Physics & Mathematics
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FR30277D1924-10-241924-10-24Perfectionnements aux horloges électromagnétiques
ExpiredFR30277E
(fr)