DEVICES IN WHICH ELECTRON BEAMS ARE PRODUCED INSIDE EXHAUSTED VESSELS,申请号CAD473473-传众专利搜索

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发明名称	DEVICES IN WHICH ELECTRON BEAMS ARE PRODUCED INSIDE EXHAUSTED VESSELS
摘要
申请公布号	CA473473(A)	申请公布日期	1951.05.08
申请号	CAD473473	申请日期
申请人	N.V. PHILIPS GLOEILAMPENFABRIEKEN	发明人	FREDERIK COETERIER
分类号		主分类号
代理机构		代理人
主权项
地址

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