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发明名称
Holdekilesystem for br÷nnverkt÷y
摘要
申请公布号
NO983131(A)
申请公布日期
1999.01.08
申请号
NO19980003131
申请日期
1998.07.07
申请人
HALLIBURTON ENERGY SERVICES INC
发明人
YUAN, YUSHENG;DAVISON, DOUGLAS W.;BERSCHEIDT, KEVIN T.
分类号
E21B33/12;E21B33/129;(IPC1-7):E21B23/06
主分类号
E21B33/12
代理机构
代理人
主权项
地址
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