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发明名称
Centralizer
摘要
申请公布号
AU726893(B2)
申请公布日期
2000.11.23
申请号
AU19970038593
申请日期
1997.08.15
申请人
WEATHERFORD/LAMB, INC.
发明人
BERND REINHOLDT;JORG LORENZ;ARNOLD STOKKA
分类号
E21B17/10;(IPC1-7):E21B17/10;E21B17/22
主分类号
E21B17/10
代理机构
代理人
主权项
地址
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