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发明名称
Lifting magnet
摘要
申请公布号
US2160019(A)
申请公布日期
1939.05.30
申请号
US19370170334
申请日期
1937.10.22
申请人
CUTLER-HAMMER, INC.
发明人
HODGSON HOWARD E.
分类号
H01F7/20
主分类号
H01F7/20
代理机构
代理人
主权项
地址
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