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经营范围
发明名称
Directional aerial system
摘要
申请公布号
US2238107(A)
申请公布日期
1941.04.15
申请号
US19380227808
申请日期
1938.08.31
申请人
RADIO CORPORATION OF AMERICA
发明人
FURNIVAL JOHN MEGARRY;WITT BERTRAM JOHN;COCKERELL CHRISTOPHER SYDNEY
分类号
G01S1/02
主分类号
G01S1/02
代理机构
代理人
主权项
地址
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