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经营范围
发明名称
PROCEDE POUR L'ENRICHISSEMENT DU CHARBON
摘要
申请公布号
BE868432(A1)
申请公布日期
1978.10.16
申请号
BE19782057091
申请日期
1978.06.26
申请人
CRUCIBLE S.A.
发明人
分类号
B03B9/04;(IPC1-7):B04C7/00
主分类号
B03B9/04
代理机构
代理人
主权项
地址
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