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发明名称
Process for obtaining raw materials containing clay minerals
摘要
申请公布号
EP1496195(B1)
申请公布日期
2007.09.12
申请号
EP20040015973
申请日期
2004.07.07
申请人
GEBRUEDER DORFNER GMBH & CO. KAOLIN- UND KRISTALLQUARZSANDWERKE KG
发明人
HAUS, REINER, DR.
分类号
E21B43/29
主分类号
E21B43/29
代理机构
代理人
主权项
地址
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