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发明名称
Polycrystalline diamond cutting element
摘要
申请公布号
GB2275068(A)
申请公布日期
1994.08.17
申请号
GB19940001326
申请日期
1994.01.25
申请人
* BAKER HUGHES INCORPORATED
发明人
REDD H * SMITH
分类号
E21B10/56;E21B10/573;(IPC1-7):E21B10/46
主分类号
E21B10/56
代理机构
代理人
主权项
地址
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