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发明名称
Radio receiving and frequency conversion system
摘要
申请公布号
US2509963(A)
申请公布日期
1950.05.30
申请号
US19470725337
申请日期
1947.01.30
申请人
COLLINS RADIO COMPANY
发明人
COLLINS ARTHUR A.
分类号
H03B21/02;H03J7/04;H04B1/26
主分类号
H03B21/02
代理机构
代理人
主权项
地址
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