Improvements in or relating to electron discharge devices,申请号GB19360021972-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	GB479761(A)	申请公布日期	1938.02.10
申请号	GB19360021972	申请日期	1936.08.10
申请人	BAIRD TELEVISION LIMITED;CONSTANTIN SZEGHO	发明人
分类号	H01J31/30	主分类号	H01J31/30
代理机构		代理人
主权项
地址

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