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发明名称
Thread joint for percussive drilling, male and female portion for forming part of the joint and method of manufacturing a product having thread for forming part of a thread joint for percussive drilling
摘要
申请公布号
AU746864(B2)
申请公布日期
2002.05.02
申请号
AU19990031789
申请日期
1999.03.19
申请人
SANDVIK AB (PUBL)
发明人
PER-OLOF LILJEBRAND;URBAN OLSSON
分类号
E21B17/042;(IPC1-7):E21B17/042
主分类号
E21B17/042
代理机构
代理人
主权项
地址
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