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发明名称
Verfahren zum Umwandeln von Mehrphasenstrom gegebener Frequenz in Einphasenstrom kleinerer Frequenz
摘要
申请公布号
DE668557(C)
申请公布日期
1938.12.05
申请号
DENDATL076979D
申请日期
申请人
DR.-ING. OSKAR LOEBL;RHEINISCH-WESTFAELISCHES ELEKTRICITAETSWERK A.-G.
发明人
分类号
H02M5/48
主分类号
H02M5/48
代理机构
代理人
主权项
地址
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