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发明名称
Communication system
摘要
申请公布号
US2080281(A)
申请公布日期
1937.05.11
申请号
US19350041207
申请日期
1935.09.19
申请人
RADIO CORPORATION OF AMERICA
发明人
KOCH WINFIELD R.
分类号
H04B7/12
主分类号
H04B7/12
代理机构
代理人
主权项
地址
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