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发明名称
Innretning og fremgangsmÕte for Õ pumpe opp pakninger i en brönn
摘要
申请公布号
NO994039(D0)
申请公布日期
1999.08.20
申请号
NO19990004039
申请日期
1999.08.20
申请人
SPECIALISED PETROLEUM SERVICES LTD
发明人
CARMICHAEL, MARK;HOWLETT, PAUL
分类号
E21B33/127;E21B43/10;(IPC1-7):E21B
主分类号
E21B33/127
代理机构
代理人
主权项
地址
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