ELECTRON-EMISSIVE SEMICONDUCTOR DEVICES,申请号GB19750015094-传众专利搜索

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发明名称	ELECTRON-EMISSIVE SEMICONDUCTOR DEVICES
摘要
申请公布号	GB1546758(A)	申请公布日期	1979.05.31
申请号	GB19750015094	申请日期	1975.04.11
申请人	ENGLISH ELECTRIC VALVE CO LTD	发明人
分类号	H01J1/32;H01J1/34;(IPC1-7):H01J1/02	主分类号	H01J1/32
代理机构		代理人
主权项
地址

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