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发明名称
An adjustable centralising device
摘要
申请公布号
GB2391570(B)
申请公布日期
2006.01.25
申请号
GB20030018520
申请日期
2003.08.07
申请人
PARAMODE LIMITED
发明人
DAVID GOFFIN;MARTIN BUNN
分类号
E21B17/10
主分类号
E21B17/10
代理机构
代理人
主权项
地址
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