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发明名称
METHOD AND APPARATUS FOR GRAVEL PACKING
摘要
申请公布号
GB8915812(D0)
申请公布日期
1989.08.31
申请号
GB19890015812
申请日期
1989.07.11
申请人
MARATHON OIL COMPANY
发明人
分类号
E21B43/04
主分类号
E21B43/04
代理机构
代理人
主权项
地址
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