Improvements in or relating to methods of manufacturing secondary electron emissive electrodes for electron discharge devices,申请号GB19560009197-传众专利搜索

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发明名称	Improvements in or relating to methods of manufacturing secondary electron emissive electrodes for electron discharge devices
摘要
申请公布号	GB802049(A)	申请公布日期	1958.09.24
申请号	GB19560009197	申请日期	1956.03.23
申请人	FERNSEH G.M.B.H.	发明人
分类号	H01J9/12	主分类号	H01J9/12
代理机构		代理人
主权项
地址

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