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发明名称
Electric motor speed control systems
摘要
申请公布号
GB797559(A)
申请公布日期
1958.07.02
申请号
GB19550036108
申请日期
1955.12.16
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人
分类号
H02P7/18
主分类号
H02P7/18
代理机构
代理人
主权项
地址
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