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发明名称
Radio program selecting apparatus
摘要
申请公布号
US2318312(A)
申请公布日期
1943.05.04
申请号
US19400370021
申请日期
1940.12.13
申请人
CHARLES HORTON
发明人
HORTON CHARLES
分类号
G04C23/00
主分类号
G04C23/00
代理机构
代理人
主权项
地址
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