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Application filed by Dolonel Perret DavidfiledCriticalDolonel Perret David
Publication of CH27555ApublicationCriticalpatent/CH27555A/fr
G04C13/00—Driving mechanisms for clocks by master-clocks
G04C13/02—Circuit arrangements; Electric clock installations
G04C13/04—Master-clocks
G04C13/0463—Arrangements for generating normal driving pulses
G04C13/0481—Arrangements for generating normal driving pulses by switching on an electromagnetic driving device, e.g. electro-motor, controlling the contacts
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Physics & Mathematics
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Electromagnetism
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General Physics & Mathematics
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CH27555A1902-11-071902-11-07Installation électrique pour la transmission de l'heure
CH27555A
(fr)