Electric motor speed control system and method,申请号US19420463916-传众专利搜索

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发明名称	Electric motor speed control system and method
摘要
申请公布号	US2422147(A)	申请公布日期	1947.06.10
申请号	US19420463916	申请日期	1942.10.30
申请人	JOHN A. DIENNER	发明人	TORNQUIST EARL L.
分类号	H02P7/06	主分类号	H02P7/06
代理机构		代理人
主权项
地址

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