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发明名称
Nozzle orientation for roller cone rock bit
摘要
申请公布号
GB2348449(B)
申请公布日期
2003.07.23
申请号
GB20000003451
申请日期
2000.02.15
申请人
* BAKER HUGHES INCORPORATED
发明人
THOMAS M * HARRIS;LEROY W * LEDGERWOOD III;BRIAN C * WIESNER;SEAN K * BERZAS;BRIAN A * BAKER
分类号
E21B10/18;(IPC1-7):E21B10/18;E21B10/22
主分类号
E21B10/18
代理机构
代理人
主权项
地址
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