ELECTRON EMISSIVE CATHODE,申请号CAD407833-传众专利搜索

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发明名称	ELECTRON EMISSIVE CATHODE
摘要
申请公布号	CA407833(A)	申请公布日期	1942.10.06
申请号	CAD407833	申请日期
申请人	CANADIAN WESTINGHOUSE COMPANY	发明人	DANIEL S. GUSTIN;GEORGE A. FREEMAN
分类号		主分类号
代理机构		代理人
主权项
地址

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