Improvements in or relating to electric discharge valves,申请号GB19570008459-传众专利搜索

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发明名称	Improvements in or relating to electric discharge valves
摘要
申请公布号	GB837024(A)	申请公布日期	1960.06.09
申请号	GB19570008459	申请日期	1957.03.14
申请人	PHILIPS ELECTRICAL INDUSTRIES LIMITED	发明人
分类号	H01J25/24	主分类号	H01J25/24
代理机构		代理人
主权项
地址

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