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发明名称
Improvements in or relating to magnets
摘要
申请公布号
GB677157(A)
申请公布日期
1952.08.13
申请号
GB19490033188
申请日期
1949.12.29
申请人
WILLIAM JESSOP AND SONS LIMITED
发明人
HADFIELD DENNIS
分类号
C22C38/16
主分类号
C22C38/16
代理机构
代理人
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