Mechanism for controlling the speed of motors,申请号US19480029513-传众专利搜索

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发明名称	Mechanism for controlling the speed of motors
摘要
申请公布号	US2571023(A)	申请公布日期	1951.10.09
申请号	US19480029513	申请日期	1948.05.27
申请人	WESTERN ELECTRIC COMPANY, INCORPORATED	发明人	ERTNER EDWARD W.
分类号	B21C47/00	主分类号	B21C47/00
代理机构		代理人
主权项
地址

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