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发明名称
Variable-selectivity radio receiver
摘要
申请公布号
US2028534(A)
申请公布日期
1936.01.21
申请号
US19340725059
申请日期
1934.05.11
申请人
JOHNSON LABORATORIES, INC.
发明人
CROSSLEY ALFRED
分类号
H03H7/01
主分类号
H03H7/01
代理机构
代理人
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地址
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