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发明名称
Direct-current generator
摘要
申请公布号
US2418471(A)
申请公布日期
1947.04.08
申请号
US19440544534
申请日期
1944.07.12
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
HOLDEN WILLIAM H. T.;MORTON EDMUND R.
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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