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发明名称
Early warning relay system
摘要
申请公布号
US2571386(A)
申请公布日期
1951.10.16
申请号
US19490116130
申请日期
1949.09.16
申请人
RADIO CORPORATION OF AMERICA
发明人
SARNOFF DAVID
分类号
G01S13/86
主分类号
G01S13/86
代理机构
代理人
主权项
地址
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