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经营范围
发明名称
Field identification apparatus
摘要
申请公布号
US2742523(A)
申请公布日期
1956.04.17
申请号
US19510258472
申请日期
1951.11.27
申请人
RADIO CORPORATION OF AMERICA
发明人
PREISIG JOSEPH O.;BARCO ALLEN A.
分类号
H04N9/44
主分类号
H04N9/44
代理机构
代理人
主权项
地址
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