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发明名称
Preform cutting elements
摘要
申请公布号
GB2295837(A)
申请公布日期
1996.06.12
申请号
GB19940024968
申请日期
1994.12.10
申请人
* CAMCO DRILLING GROUP LIMITED
发明人
NIGEL DENNIS * GRIFFIN;JOHN MICHAEL * FULLER
分类号
C04B37/02;C23C30/00;E21B10/56;E21B10/573;(IPC1-7):E21B10/46
主分类号
C04B37/02
代理机构
代理人
主权项
地址
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