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经营范围
发明名称
Production de carbures et de borures métalliques
摘要
申请公布号
FR1521891(A)
申请公布日期
1968.04.19
申请号
FR19670105171
申请日期
1967.05.03
申请人
THE CARBORUNDUM COMPANY
发明人
分类号
C01B31/30;C01B35/04
主分类号
C01B31/30
代理机构
代理人
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