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发明名称
Improvements in or relating to ferromagnetic compounds
摘要
申请公布号
GB977596(A)
申请公布日期
1964.12.09
申请号
GB19610010965
申请日期
1961.03.24
申请人
W. R. GRACE & CO.
发明人
分类号
C22C19/00;C22C28/00;H01F1/055
主分类号
C22C19/00
代理机构
代理人
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