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发明名称
ZEMENTVERROHRUNGSSCHUH FÜR EINZELDURCHMESSERBOHRLOCH
摘要
申请公布号
DE60115688(D1)
申请公布日期
2006.01.12
申请号
DE20016015688
申请日期
2001.10.15
申请人
WEATHERFORD/LAMB, INC.
发明人
HEBERT, EMILE;SEELY, JOHN;BOUDREAUX, JUDE;DUPRE, A.
分类号
E21B17/04;E21B17/042;E21B17/14;E21B21/10;E21B43/10;F16L13/14
主分类号
E21B17/04
代理机构
代理人
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地址
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