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经营范围
发明名称
Oil Recovery Method
摘要
申请公布号
NO983709(D0)
申请公布日期
1998.08.13
申请号
NO19980003709
申请日期
1998.08.13
申请人
EUREKA OIL ASA
发明人
ELLINGSEN, OLAV
分类号
E21B;E21B43/16;E21B43/24;E21B43/29;(IPC1-7):E21B
主分类号
E21B
代理机构
代理人
主权项
地址
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