Improvements in electrical potential controlling devices with particular reference to the speed control of electric motors in follow-up control systems,申请号GB19380035338-传众专利搜索

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发明名称	Improvements in electrical potential controlling devices with particular reference to the speed control of electric motors in follow-up control systems
摘要
申请公布号	GB522267(A)	申请公布日期	1940.06.13
申请号	GB19380035338	申请日期	1938.12.05
申请人	GEORGE WILLIAM BRAHAM	发明人
分类号	G05D3/16	主分类号	G05D3/16
代理机构		代理人
主权项
地址

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