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发明名称
Einrichtung zur Erzielung stetiger Stromaenderungen in Gleichstromerregerwicklungen bei grobstufigen Spannungsaenderungen, insbesondere in Gleichstromerregerwicklungen von elektrischen Maschinen
摘要
申请公布号
DE654601(C)
申请公布日期
1937.12.27
申请号
DE1931A060421D
申请日期
1931.01.22
申请人
ALLGEMEINE ELEKTRICITAETS-GESELLSCHAFT
发明人
分类号
H02P7/34
主分类号
H02P7/34
代理机构
代理人
主权项
地址
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