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发明名称
Diamond cap cutting elements with flats
摘要
申请公布号
GB2345707(B)
申请公布日期
2003.02.05
申请号
GB19990028653
申请日期
1999.12.04
申请人
* BAKER HUGHES INCORPORATED
发明人
MICHAEL L * DOSTER
分类号
E21B10/52;(IPC1-7):E21B10/16;E21B10/56
主分类号
E21B10/52
代理机构
代理人
主权项
地址
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