Improvements in or relating to electron discharge tubes,申请号GB19580031022-传众专利搜索

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发明名称	Improvements in or relating to electron discharge tubes
摘要
申请公布号	GB844729(A)	申请公布日期	1960.08.17
申请号	GB19580031022	申请日期	1958.09.29
申请人	TELEFUNKEN G.M.B.H.	发明人
分类号	H01J23/26	主分类号	H01J23/26
代理机构		代理人
主权项
地址

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