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发明名称
Radio tune-in control device
摘要
申请公布号
US2070779(A)
申请公布日期
1937.02.16
申请号
US19330703980
申请日期
1933.12.26
申请人
HARRY SCHEINER
发明人
BOWEN CHARLES R.;SOUTHWELL JOHN M.
分类号
G04C23/00
主分类号
G04C23/00
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