Improvements in or relating to the manufacture of grids for use in electron discharge devices,申请号GB19440025829-传众专利搜索

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发明名称	Improvements in or relating to the manufacture of grids for use in electron discharge devices
摘要
申请公布号	GB600257(A)	申请公布日期	1948.04.05
申请号	GB19440025829	申请日期	1944.12.21
申请人	HERBERT EDWARD HOLMAN	发明人
分类号	H01J19/00	主分类号	H01J19/00
代理机构		代理人
主权项
地址

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