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发明名称
VON DER OBERFLÄCHE ELEKTRISCH BETÄTIGTES ZIRKULATIONSZWISCHENSTÜCK
摘要
申请公布号
AT312266(T)
申请公布日期
2005.12.15
申请号
AT20000957536T
申请日期
2000.08.17
申请人
HALLIBURTON ENERGY SERVICES, INC.
发明人
ESTEP, JAMES, W.;ODELL ALBERT, C.,II;JOHNSON, HAROLD, D.
分类号
E21B21/10;E21B34/06;(IPC1-7):E21B4/04
主分类号
E21B21/10
代理机构
代理人
主权项
地址
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