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发明名称
Downhole cleaning tool with shear clutch
摘要
申请公布号
GB2359105(A)
申请公布日期
2001.08.15
申请号
GB20010001536
申请日期
2001.01.22
申请人
* SPS-AFOS GROUP LIMITED
发明人
PAUL * HOWLETT
分类号
E21B17/02;E21B17/10;E21B37/02;(IPC1-7):E21B37/02
主分类号
E21B17/02
代理机构
代理人
主权项
地址
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