Elektrische Entladungsroehre mit einer mit Erdalkalimetalloxyden aktivierten Kathode,申请号DE1950N002979-传众专利搜索

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发明名称	Elektrische Entladungsroehre mit einer mit Erdalkalimetalloxyden aktivierten Kathode
摘要
申请公布号	DE857419(C)	申请公布日期	1952.11.27
申请号	DE1950N002979	申请日期	1950.10.07
申请人	N. V. PHILIPS' GLOEILAMPENFABRIEKEN	发明人	LOOSJES ROBERT
分类号	B66B9/193;H01J19/30	主分类号	B66B9/193
代理机构		代理人
主权项
地址

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