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发明名称
ÜBERWACHUNG IM BOHRLOCH UND DURCHFLUSS-REGELSYSTEM
摘要
申请公布号
DE60113658(D1)
申请公布日期
2006.02.09
申请号
DE20016013658
申请日期
2001.03.06
申请人
EXPRO NORTH SEA LTD., DYCE
发明人
RICHARDS, ANDREW;WEBSTER, WILLIAM GEORGE NIGEL PARKINSON
分类号
E21B17/20;E21B34/16;E21B47/00;E21B47/12;H01B7/04;H04B3/44
主分类号
E21B17/20
代理机构
代理人
主权项
地址
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