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经营范围
发明名称
Expandable Drilling Apparatus
摘要
申请公布号
GB2365888(A)
申请公布日期
2002.02.27
申请号
GB20000019854
申请日期
2000.08.11
申请人
* RENOVUS LIMITED
发明人
GIANCARLO * PIA
分类号
E21B10/32;(IPC1-7):E21B10/32
主分类号
E21B10/32
代理机构
代理人
主权项
地址
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