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发明名称
Einrichtung zur beschleunigten Umschaltung der Polaritaeten von elektrischen Gleichstrommaschinen
摘要
申请公布号
DE718237(C)
申请公布日期
1942.03.06
申请号
DE1940L101420D
申请日期
1940.07.30
申请人
ALLGEMEINE ELEKTRICITAETS-GESELLSCHAFT
发明人
EICHHORN DIPL.-ING. HANS
分类号
H02P9/12
主分类号
H02P9/12
代理机构
代理人
主权项
地址
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