Improvements in and relating to electric valve circuits,申请号GB19330015483-传众专利搜索

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发明名称	Improvements in and relating to electric valve circuits
摘要
申请公布号	GB419757(A)	申请公布日期	1934.11.19
申请号	GB19330015483	申请日期	1933.05.29
申请人	THE BRITISH THOMSON-HOUSTON COMPANY, LIMITED	发明人
分类号	H02M7/44;H02M7/51	主分类号	H02M7/44
代理机构		代理人
主权项
地址

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