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经营范围
发明名称
Liner assembly and method of running the same
摘要
申请公布号
GB9902683(D0)
申请公布日期
1999.03.31
申请号
GB19990002683
申请日期
1999.02.06
申请人
WEATHERFORD/LAMB, INC
发明人
分类号
E21B33/14
主分类号
E21B33/14
代理机构
代理人
主权项
地址
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