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发明名称
Dual motor speed control
摘要
申请公布号
US2890397(A)
申请公布日期
1959.06.09
申请号
US19570645726
申请日期
1957.03.13
申请人
UNITED STATES STEEL CORPORATION
发明人
RENDEL GEORGE H.
分类号
H02P5/50
主分类号
H02P5/50
代理机构
代理人
主权项
地址
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