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发明名称
Controller for electric motors
摘要
申请公布号
US1750892(A)
申请公布日期
1930.03.18
申请号
US19260148489
申请日期
1926.11.15
申请人
CUTLER-HAMMER, INC.
发明人
KENNEDY WALTER C.
分类号
B66C13/24
主分类号
B66C13/24
代理机构
代理人
主权项
地址
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