Improvements in and relating to electric valve circuits,申请号GB19310027127-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	GB390184(A)	申请公布日期	1933.03.29
申请号	GB19310027127	申请日期	1931.09.29
申请人	THE BRITISH THOMSON-HOUSTON COMPANY LIMITED	发明人
分类号	H02M1/04;H02M7/15	主分类号	H02M1/04
代理机构		代理人
主权项
地址

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