Method of making and assembling a stem for vacuum tubes,申请号GB19470005835-传众专利搜索

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发明名称	Method of making and assembling a stem for vacuum tubes
摘要
申请公布号	GB630028(A)	申请公布日期	1949.10.04
申请号	GB19470005835	申请日期	1947.02.28
申请人	STANDARD TELEPHONES AND CABLES LIMITED	发明人
分类号	H01J5/32;H01J9/32;H01J19/66	主分类号	H01J5/32
代理机构		代理人
主权项
地址

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