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Publication of AT171539BpublicationCriticalpatent/AT171539B/de
G04C13/12—Secondary clocks actuated intermittently by continuously-rotating electric motors
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General Physics & Mathematics
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AT171539D1949-10-271950-11-17Nachlauf- und Synchronisiereinrichtung für einen von einem Impulsgeber zeigertreu synchron bewegten Impulsempfänger
AT171539B
(de)