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Application filed by L M Ericsson & Co AbfiledCriticalL M Ericsson & Co Ab
Publication of CH45347ApublicationCriticalpatent/CH45347A/de
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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CH45347A1908-09-301908-09-30Schaltung zum Antrieb von elektrischen Uhren oder andern anzutreibenden Apparaten
CH45347A
(de)