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发明名称
Downhole tool
摘要
申请公布号
GB2320270(B)
申请公布日期
2001.01.17
申请号
GB19970025821
申请日期
1997.12.06
申请人
* PSL TOOLS LIMITED;* PSL TECHNOLOGY LIMITED
发明人
RICHARD ALVIN * ARMELL;GIANCARLO * TOMASSO
分类号
E21B10/32;(IPC1-7):E21B10/32
主分类号
E21B10/32
代理机构
代理人
主权项
地址
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