Directional antenna systems,申请号GB19470007696-传众专利搜索

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发明名称	Directional antenna systems
摘要
申请公布号	GB647136(A)	申请公布日期	1950.12.06
申请号	GB19470007696	申请日期	1947.03.20
申请人	PHILCO CORPORATION	发明人
分类号	H01Q13/04;H01Q19/06;H01Q19/08	主分类号	H01Q13/04
代理机构		代理人
主权项
地址

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