Bi-directional electronic motor speed control,申请号US19550542648-传众专利搜索

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发明名称	Bi-directional electronic motor speed control
摘要
申请公布号	US2787748(A)	申请公布日期	1957.04.02
申请号	US19550542648	申请日期	1955.10.25
申请人	CARLSON OSCAR E	发明人	CARLSON OSCAR E.
分类号	H02P7/26	主分类号	H02P7/26
代理机构		代理人
主权项
地址

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