CATHODE HAVING AN ELECTRON-EMITTING SURFACE,申请号CAD559372-传众专利搜索

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发明名称	CATHODE HAVING AN ELECTRON-EMITTING SURFACE
摘要
申请公布号	CA559372(A)	申请公布日期	1958.06.24
申请号	CAD559372	申请日期
申请人	N.V. PHILIPS GLOEILAMPENFABRIEKEN	发明人	OTTO G. KOPPIUS
分类号		主分类号
代理机构		代理人
主权项
地址

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