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Gleichstrommotor von Siemens Halske. Gleichstrommotor von Siemens Halske DC motor by Siemens Halske Bibliothek allgemeinen und praktischen Wissens fr Militranwrter Band III Deutsches Verlaghaus Bong Co Berlin Leipzig Wien Stuttgart Scan made by Kogo Public Domain because copyright expired PDold DC motors SiemensHalske