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Application filed by Tavannes Watch Co SafiledCriticalTavannes Watch Co Sa
Publication of CH79362ApublicationCriticalpatent/CH79362A/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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CH79362A1918-04-121918-04-12Dispositif de commande de roue primaire de pendule électrique
CH79362A
(fr)