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发明名称
Directional antenna system
摘要
申请公布号
US2177415(A)
申请公布日期
1939.10.24
申请号
US19360118541
申请日期
1936.12.31
申请人
MACKAY RADIO AND TELEGRAPH COMPANY
发明人
ALFORD ANDREW
分类号
H01Q11/06
主分类号
H01Q11/06
代理机构
代理人
主权项
地址
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