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发明名称
Toughness optimized insert for rock and hammer bits
摘要
申请公布号
GB2372276(B)
申请公布日期
2002.10.16
申请号
GB20020010683
申请日期
2001.05.17
申请人
* SMITH INTERNATIONAL, INC.
发明人
JOHN DANIEL * BELNAP;NATHAN ROY * ANDERSON;MICHAEL ALLEN * SIRACKI;SUJIAN * HUANG
分类号
C04B35/01;C04B35/111;C04B35/486;C04B35/56;C04B35/58;C04B35/645;(IPC1-7):E21B10/46;E21B10/56
主分类号
C04B35/01
代理机构
代理人
主权项
地址
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