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发明名称
Einrichtung zum Umschalten von Stromrichtern bei einem Wechsel der Energierichtung
摘要
申请公布号
DE728298(C)
申请公布日期
1942.11.25
申请号
DE1939S139192D
申请日期
1939.11.05
申请人
SIEMENS-SCHUCKERTWERKE AG.
发明人
BLUMENTRITT WILHELM
分类号
H02M7/00
主分类号
H02M7/00
代理机构
代理人
主权项
地址
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