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发明名称
Directional antenna
摘要
申请公布号
US2280738(A)
申请公布日期
1942.04.21
申请号
US19400367358
申请日期
1940.11.27
申请人
ALLEN B. DU MONT LABORATORIES, INC.
发明人
BACE CHARLES N.
分类号
H01Q19/24
主分类号
H01Q19/24
代理机构
代理人
主权项
地址
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