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发明名称
Radio receiving system
摘要
申请公布号
US2183741(A)
申请公布日期
1939.12.19
申请号
US19370160200
申请日期
1937.08.21
申请人
RADIO CORPORATION OF AMERICA
发明人
GRUNDMANN GUSTAVE L.
分类号
H04N5/60
主分类号
H04N5/60
代理机构
代理人
主权项
地址
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