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经营范围
发明名称
Control of alternating current motors
摘要
申请公布号
US2464122(A)
申请公布日期
1949.03.08
申请号
US19440535950
申请日期
1944.05.17
申请人
CUTLER-HAMMER, INC.
发明人
DOUGLAS JOHN F. H.;SEEGER EDWIN W.
分类号
B66C13/26
主分类号
B66C13/26
代理机构
代理人
主权项
地址
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