Improvements in and relating to the regulation of the speed of electric motors,申请号GB19290038132-传众专利搜索

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发明名称	Improvements in and relating to the regulation of the speed of electric motors
摘要
申请公布号	GB346417(A)	申请公布日期	1931.04.13
申请号	GB19290038132	申请日期	1929.12.12
申请人	JONNI ZETSCHE;JAMES SINCLAIR-ROSS	发明人
分类号	H02K23/54	主分类号	H02K23/54
代理机构		代理人
主权项
地址

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