Manufacture of electron discharge devices,申请号GB19420004166-传众专利搜索

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发明名称	Manufacture of electron discharge devices
摘要
申请公布号	GB566651(A)	申请公布日期	1945.01.09
申请号	GB19420004166	申请日期	1942.03.28
申请人	STANDARD TELEPHONES AND CABLES LIMITED	发明人
分类号	H01J5/20;H01J5/24;H01J25/12;H01J29/82	主分类号	H01J5/20
代理机构		代理人
主权项
地址

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