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经营范围
发明名称
Improvements in or relating to the supply of a direct current electromagnet from an alternating current source
摘要
申请公布号
GB367245(A)
申请公布日期
1932.02.18
申请号
GB19310013094
申请日期
1931.05.04
申请人
THE CUTLER-HAMMER MANUFACTURING COMPANY
发明人
分类号
H01F7/18
主分类号
H01F7/18
代理机构
代理人
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