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发明名称
Control for electric motors
摘要
申请公布号
US1775730(A)
申请公布日期
1930.09.16
申请号
US19290335081
申请日期
1929.01.25
申请人
SQUARE D COMPANY
发明人
MCNICOL FORREST C.
分类号
主分类号
代理机构
代理人
主权项
地址
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