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发明名称
Improvements in or relating to the purification of refractory metals
摘要
申请公布号
GB810086(A)
申请公布日期
1959.03.11
申请号
GB19560033915
申请日期
1956.11.06
申请人
E. I. DU PONT DE NEMOURS AND COMPANY
发明人
JR. CHARLES HENRY WINTER,;TULLY JOHN NELSON
分类号
C22B34/00
主分类号
C22B34/00
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