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经营范围
发明名称
Improvements in or relating to control systems for direct current motors supplied from a constant current source
摘要
申请公布号
GB609227(A)
申请公布日期
1948.09.28
申请号
GB19450034677
申请日期
1945.12.21
申请人
WESTINGHOUSE ELECTRIC INTERNATIONAL COMPANY
发明人
分类号
H02P5/685
主分类号
H02P5/685
代理机构
代理人
主权项
地址
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