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发明名称
PRODUCTION OF REFRACTORY METAL PRODUCTS
摘要
申请公布号
CA745979(A)
申请公布日期
1966.11.08
申请号
CAD745979
申请日期
申请人
E.I. DU PONT DE NEMOURS AND COMPANY
发明人
ROBERT B. HAND
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主分类号
代理机构
代理人
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