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经营范围
发明名称
Well completion method and system
摘要
申请公布号
USRE30711(E)
申请公布日期
1981.08.18
申请号
US19780901017
申请日期
1978.04.27
申请人
发明人
分类号
E21B33/127;E21B33/14;E21B43/11
主分类号
E21B33/127
代理机构
代理人
主权项
地址
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