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发明名称
Direction finder
摘要
申请公布号
US2581444(A)
申请公布日期
1952.01.08
申请号
US19490118222
申请日期
1949.09.28
申请人
FEDERAL TELEPHONE AND RADIO CORPORATION
发明人
RICHARDSON AVERY GROAT;CHESUS FRANK O.
分类号
G01S1/02;G01S19/15;G01S19/18;G01S19/48;G01S19/49;G01S19/54;H01Q21/18
主分类号
G01S1/02
代理机构
代理人
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地址
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