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发明名称
Electronic system
摘要
申请公布号
US2289493(A)
申请公布日期
1942.07.14
申请号
US19400345770
申请日期
1940.07.16
申请人
RADIO CORPORATION OF AMERICA
发明人
GEORGE ROSCOE H.
分类号
G01S1/02;G01S19/04
主分类号
G01S1/02
代理机构
代理人
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