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发明名称
Selective signal transmission system
摘要
申请公布号
US2611025(A)
申请公布日期
1952.09.16
申请号
US19510239823
申请日期
1951.08.01
申请人
GENERAL ELECTRIC COMPANY
发明人
JANKOWSKI HERMAN
分类号
G11B5/02
主分类号
G11B5/02
代理机构
代理人
主权项
地址
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