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经营范围
发明名称
Non-commutating non-unipolar direct current generator
摘要
申请公布号
US2742584(A)
申请公布日期
1956.04.17
申请号
US19530355688
申请日期
1953.05.18
申请人
发明人
SERNA ALEX
分类号
H02K57/00
主分类号
H02K57/00
代理机构
代理人
主权项
地址
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