Improvements in electron discharge devices,申请号GB19460026181-传众专利搜索

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发明名称	Improvements in electron discharge devices
摘要
申请公布号	GB616229(A)	申请公布日期	1949.01.18
申请号	GB19460026181	申请日期	1946.08.30
申请人	WESTERN ELECTRIC COMPANY INCORPORATED	发明人
分类号	H01J19/38	主分类号	H01J19/38
代理机构		代理人
主权项
地址

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