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发明名称
Modulation
摘要
申请公布号
US2163719(A)
申请公布日期
1939.06.27
申请号
US19350043013
申请日期
1935.10.01
申请人
RADIO CORPORATION OF AMERICA
发明人
USSELMAN GEORGE L.
分类号
H03C3/04;H03C5/00
主分类号
H03C3/04
代理机构
代理人
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