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经营范围
发明名称
Ruuvikierrerakenne
摘要
申请公布号
FI93763(B)
申请公布日期
1995.02.15
申请号
FI19910002575
申请日期
1991.05.29
申请人
SANDVIK AB
发明人
YOUSEF, FAISAL J.;KANE, ROBERT F.;HAM, JOEL;MILDREN, DAVID
分类号
E21B17/042;F16B31/06;F16B33/02;(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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