Improvements in and relating to electric valve converting systems,申请号GB19500020246-传众专利搜索

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发明名称	Improvements in and relating to electric valve converting systems
摘要
申请公布号	GB683040(A)	申请公布日期	1952.11.19
申请号	GB19500020246	申请日期	1950.08.15
申请人	THE BRITISH THOMSON-HOUSTON COMPANY LIMITED	发明人
分类号	H02M7/00	主分类号	H02M7/00
代理机构		代理人
主权项
地址

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