Elektronenröhre mit einer flachen Kathode.,申请号CHD281265-传众专利搜索

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发明名称	Elektronenröhre mit einer flachen Kathode.
摘要
申请公布号	CH281265(A)	申请公布日期	1952.02.29
申请号	CHD281265	申请日期	1950.02.23
申请人	N. V. PHILIPS' GLOEILAMPENFABRIEKEN	发明人	GLOEILAMPENFABRIEKEN N. V. PHILIPS'
分类号	H01J21/36	主分类号	H01J21/36
代理机构		代理人
主权项
地址

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