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经营范围
发明名称
Fremgangsmåte ved raffinering av papirmasse
摘要
申请公布号
NO179459(C)
申请公布日期
1996.10.09
申请号
NO19920000405
申请日期
1992.01.30
申请人
SOCIETE FRANCAISE HOECHST
发明人
RICHARD, MICHEL;ROUX, CHRISTIAN;TROUVE, CLAUDE
分类号
D21B1/16;D21D1/20;(IPC1-7):D21D1/20
主分类号
D21B1/16
代理机构
代理人
主权项
地址
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