THERMIONIC CATHODE,申请号CAD337635-传众专利搜索

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发明名称	THERMIONIC CATHODE
摘要
申请公布号	CA337635(A)	申请公布日期	1933.12.05
申请号	CAD337635	申请日期
申请人	THE CANADIAN WESTINGHOUSE COMPANY	发明人	ERWIN F. LOWRY
分类号		主分类号
代理机构		代理人
主权项
地址

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