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发明名称
Radio signaling system
摘要
申请公布号
US2211003(A)
申请公布日期
1940.08.13
申请号
US19380187618
申请日期
1938.01.29
申请人
RADIO CORPORATION OF AMERICA
发明人
CONKLIN JAMES W.
分类号
H03C1/16;H03C7/02;H03H7/38
主分类号
H03C1/16
代理机构
代理人
主权项
地址
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