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发明名称
NOUVEAUX DERIVES DE L'ACIDE LIGNOSULFONIQUE, PROCEDE POUR LEUR PREPARATION ET LEUR UTILISATION COMME ADDITIFS POUR BOUES DE FORAGE
摘要
申请公布号
BE887672(A1)
申请公布日期
1981.06.15
申请号
BE19810203916
申请日期
1981.02.25
申请人
L' AVEBENE
发明人
J.-J. DUPIN
分类号
C09K8/20;(IPC1-7):C08B/;C07C/;E21B/
主分类号
C09K8/20
代理机构
代理人
主权项
地址
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