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发明名称
SHORT WAVE RADIO RECEPTION
摘要
申请公布号
CA390052(A)
申请公布日期
1940.07.16
申请号
CAD390052
申请日期
申请人
RADIO CORPORATION OF AMERICA
发明人
BERTRAM TREVOR;RALPH W. GEORGE
分类号
主分类号
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