Improvements in or relating to electron discharge devices and to electron sources therefor,申请号GB19540015854-传众专利搜索

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发明名称	Improvements in or relating to electron discharge devices and to electron sources therefor
摘要
申请公布号	GB767446(A)	申请公布日期	1957.02.06
申请号	GB19540015854	申请日期	1954.05.28
申请人	WESTERN ELECTRIC COMPANY	发明人
分类号	H01J1/02;H01J3/02	主分类号	H01J1/02
代理机构		代理人
主权项
地址

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