Improvements in and relating to screen caps for thermionic valves,申请号GB19420000074-传众专利搜索

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发明名称	Improvements in and relating to screen caps for thermionic valves
摘要
申请公布号	GB552763(A)	申请公布日期	1943.04.22
申请号	GB19420000074	申请日期	1942.01.02
申请人	CARR FASTENER COMPANY LIMITED;GEORGE WAGSTAFF	发明人
分类号	H01J5/54	主分类号	H01J5/54
代理机构		代理人
主权项
地址

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