Speed regulator for electric motors,申请号US19450606068-传众专利搜索

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发明名称	Speed regulator for electric motors
摘要
申请公布号	US2520492(A)	申请公布日期	1950.08.29
申请号	US19450606068	申请日期	1945.07.20
申请人	WHITE SEWING MACHINE CORPORATION	发明人	COLEGROVE NATHANIEL E.
分类号	H02P25/18	主分类号	H02P25/18
代理机构		代理人
主权项
地址

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