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发明名称
Permanent magnet
摘要
申请公布号
US2285406(A)
申请公布日期
1942.06.09
申请号
US19400340997
申请日期
1940.06.17
申请人
THE INTERNATIONAL NICKEL COMPANY, INC.
发明人
BIEBER CLARENCE GEORGE
分类号
H01F7/02
主分类号
H01F7/02
代理机构
代理人
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地址
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