Improvements in or relating to electron discharge devices for use in television and like systems,申请号GB19370022353-传众专利搜索

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发明名称	Improvements in or relating to electron discharge devices for use in television and like systems
摘要
申请公布号	GB500587(A)	申请公布日期	1939.02.13
申请号	GB19370022353	申请日期	1937.08.13
申请人	WALTER HEIMANN	发明人
分类号	H01J29/02	主分类号	H01J29/02
代理机构		代理人
主权项
地址

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