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发明名称
Radio tuner
摘要
申请公布号
US2154778(A)
申请公布日期
1939.04.18
申请号
US19380214007
申请日期
1938.06.16
申请人
ELECTRICAL RESEARCH LABORATORIES, INC.
发明人
SCHNELL WILLIAM J.
分类号
H03J5/32
主分类号
H03J5/32
代理机构
代理人
主权项
地址
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