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发明名称
Procédé d'affinage des carbures réfractaires
摘要
申请公布号
FR949922(A)
申请公布日期
1949.09.13
申请号
FRD949922
申请日期
1941.08.04
申请人
LE CARBONE-LORRAINE
发明人
分类号
C01B31/30
主分类号
C01B31/30
代理机构
代理人
主权项
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