Improvements in or relating to electron discharge devices,申请号GB19440011031-传众专利搜索

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发明名称	Improvements in or relating to electron discharge devices
摘要
申请公布号	GB623537(A)	申请公布日期	1949.05.19
申请号	GB19440011031	申请日期	1944.06.08
申请人	RUDOLF KOMPFNER;CHARLES SEYMOUR WRIGHT	发明人
分类号	H01J25/38	主分类号	H01J25/38
代理机构		代理人
主权项
地址

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