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发明名称
Voltage control
摘要
申请公布号
US2323857(A)
申请公布日期
1943.07.06
申请号
US19410425157
申请日期
1941.12.31
申请人
RADIO CORPORATION OF AMERICA
发明人
TREVOR BERTRAM
分类号
H02P9/24
主分类号
H02P9/24
代理机构
代理人
主权项
地址
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