Improvements in and relating to speed controllers for electric motors,申请号GB19300019476-传众专利搜索

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发明名称	Improvements in and relating to speed controllers for electric motors
摘要
申请公布号	GB354933(A)	申请公布日期	1931.08.20
申请号	GB19300019476	申请日期	1930.06.26
申请人	THE CUTLER-HAMMER MANUFACTURING COMPANY	发明人
分类号	H02P7/298	主分类号	H02P7/298
代理机构		代理人
主权项
地址

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