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经营范围
发明名称
Durch Differenzdruck betätigbares Bohrlochwerkzeug.
摘要
申请公布号
DE69205700(T2)
申请公布日期
1996.03.28
申请号
DE19926005700T
申请日期
1992.02.19
申请人
HALLIBURTON CO., DUNCAN, OKLA., US
发明人
SCHULTZ, ROGER L., RICHARDSON, TEXAS 75080, US;MANKE, KEVIN R., FLOWER MOUND, TEXAS 75028, US;SKINNER, NEAL G., LEWISVILLE, TEXAS 75067, US
分类号
E21B23/04;E21B34/06;E21B34/10;E21B41/00;(IPC1-7):E21B23/04
主分类号
E21B23/04
代理机构
代理人
主权项
地址
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