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发明名称
PRODUITS FRITTES STABILISES AU NIOBIUM OU AU TANTALE
摘要
申请公布号
BE872317(A1)
申请公布日期
1979.03.16
申请号
BE19780191969
申请日期
1978.11.27
申请人
BRITISH STEEL CORP.
发明人
分类号
B22F1/00;C22C33/02;C22C38/00;(IPC1-7):C22C/
主分类号
B22F1/00
代理机构
代理人
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