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发明名称
Improvements in the treatment of refractory metals
摘要
申请公布号
GB865742(A)
申请公布日期
1961.04.19
申请号
GB19590015895
申请日期
1959.05.08
申请人
E.I. DU PONT DE NEMOURS AND COMPANY
发明人
分类号
C22B34/24
主分类号
C22B34/24
代理机构
代理人
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