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发明名称
Motive system for direct-current regulators
摘要
申请公布号
US1768979(A)
申请公布日期
1930.07.01
申请号
US19280323137
申请日期
1928.12.01
申请人
A. G. BROWN BOVERI & CIE.
发明人
GUETTINGER HEINRICH
分类号
H02P9/18
主分类号
H02P9/18
代理机构
代理人
主权项
地址
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