DIRECTIONAL ANTENNA SYSTEMS,申请号CAD478399-传众专利搜索

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发明名称	DIRECTIONAL ANTENNA SYSTEMS
摘要
申请公布号	CA478399(A)	申请公布日期	1951.11.06
申请号	CAD478399	申请日期
申请人	WESTERN ELECTRIC COMPANY, INCORPORATED	发明人	ALFRED C. BECK
分类号		主分类号
代理机构		代理人
主权项
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