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Application filed by Alfred FriedrichfiledCriticalAlfred Friedrich
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Publication of AT140708BpublicationCriticalpatent/AT140708B/de
AT140708D1933-05-231933-05-23Kontakteinrichtung zur Polwendung für den Antrieb elektrischer Apparate, insbesondere elektrisch betriebener Nebenuhren.
AT140708B
(de)