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发明名称
CHARBON ACTIF ET PROCEDE POUR SA PREPARATION
摘要
申请公布号
BE849491(A1)
申请公布日期
1977.06.16
申请号
BE19760173336
申请日期
1976.12.16
申请人
发明人
分类号
C01B31/12;(IPC1-7):01B/
主分类号
C01B31/12
代理机构
代理人
主权项
地址
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