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发明名称
Tooth for a drill bit
摘要
申请公布号
GB2361497(B)
申请公布日期
2002.01.09
申请号
GB20010016850
申请日期
1998.04.02
申请人
* SMITH INTERNATIONAL INC
发明人
JIINJEN ALBERT * SUE;JAMES C * MINIKUS;ZHIGANG * FANG
分类号
E21B10/16;E21B10/50;(IPC1-7):E21B10/16
主分类号
E21B10/16
代理机构
代理人
主权项
地址
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