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经营范围
发明名称
Frequency discriminator network
摘要
申请公布号
US2606250(A)
申请公布日期
1952.08.05
申请号
US19470738056
申请日期
1947.03.29
申请人
RADIO CORPORATION OF AMERICA
发明人
MACKEY DONALD
分类号
H03D3/10
主分类号
H03D3/10
代理机构
代理人
主权项
地址
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