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发明名称
Radio receiver
摘要
申请公布号
US2224582(A)
申请公布日期
1940.12.10
申请号
US19390249932
申请日期
1939.01.09
申请人
ELECTRICAL RESEARCH LABORATORIES INC.
发明人
SCHNELL WILLIAM J.
分类号
H03G1/02;H03G3/22
主分类号
H03G1/02
代理机构
代理人
主权项
地址
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