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发明名称
DIRECTIONAL ANTENNA SYSTEMS
摘要
申请公布号
CA487096(A)
申请公布日期
1952.10.07
申请号
CAD487096
申请日期
申请人
PHILCO CORPORATION
发明人
OSCAR T. SIMPSON
分类号
主分类号
代理机构
代理人
主权项
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