Improved control device for electric motors,申请号GB19490017535-传众专利搜索

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发明名称	Improved control device for electric motors
摘要
申请公布号	GB673473(A)	申请公布日期	1952.06.04
申请号	GB19490017535	申请日期	1949.07.02
申请人	GENERAL MOTORS CORPORATION	发明人
分类号	H01H61/00	主分类号	H01H61/00
代理机构		代理人
主权项
地址

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