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发明名称
Verrohrungs-Zentrierkorb
摘要
申请公布号
DE69506754(D1)
申请公布日期
1999.02.04
申请号
DE19956006754
申请日期
1995.03.09
申请人
DOWNHOLE PRODUCTS PLC., PETERCULTER,ABERDEEN, SCHOTTLAND, GB
发明人
BARRON, WILLIAM, ABERDEEN, GB;KIRK, IAN ALISTAIR, PETERCULTER, ABERDEEN, GB;CLARK, ALISTAIR BERTRAM, WESTHILL, ABERDEEN, GB
分类号
E21B17/10;(IPC1-7):E21B17/10
主分类号
E21B17/10
代理机构
代理人
主权项
地址
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