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发明名称
Wedge antenna system for sector operation
摘要
申请公布号
US2720590(A)
申请公布日期
1955.10.11
申请号
US19530378752
申请日期
1953.09.08
申请人
INTERNATIONAL TELEPHONE AND TELEGRAPH CORPORATION
发明人
NAIL JAMES J.;SPANOS WILLIAM M.
分类号
H01Q19/10
主分类号
H01Q19/10
代理机构
代理人
主权项
地址
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