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发明名称
Radio tuning device
摘要
申请公布号
US2038321(A)
申请公布日期
1936.04.21
申请号
US19290380423
申请日期
1929.07.23
申请人
RADIO CORPORATION OF AMERICA
发明人
THOMAS ADOLPH A.
分类号
H03J1/08
主分类号
H03J1/08
代理机构
代理人
主权项
地址
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