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发明名称
Permeability tuning system for superheterodyne receiver
摘要
申请公布号
US2565261(A)
申请公布日期
1951.08.21
申请号
US19480048885
申请日期
1948.09.11
申请人
RADIO CORPORATION OF AMERICA
发明人
PAN WEN YUAN
分类号
H03J3/28
主分类号
H03J3/28
代理机构
代理人
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地址
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