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发明名称
ZENTRIERVORRICHTUNG
摘要
申请公布号
DE69801110(D1)
申请公布日期
2001.08.16
申请号
DE19986001110
申请日期
1998.04.09
申请人
WEATHERFORD/LAMB INC., WILMINGTON
发明人
KINZEL, HOLGER
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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