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发明名称
PERFORERINGSKANON - AVFYRINGSVERKTOEY.
摘要
申请公布号
NO881684(A)
申请公布日期
1988.10.21
申请号
NO19880001684
申请日期
1988.04.19
申请人
HALLIBURTON CO
发明人
GEORGE, FLINT R.;WESSON, DAVID S.;MCMAHAN, MICHAEL E.
分类号
E21B23/00;E21B34/00;E21B34/10;E21B43/116;E21B43/1185;E21B49/00;(IPC1-7):E21B/
主分类号
E21B23/00
代理机构
代理人
主权项
地址
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