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经营范围
发明名称
DRILL ROD
摘要
申请公布号
IE872759(L)
申请公布日期
1988.04.15
申请号
IE19870002759
申请日期
1987.10.14
申请人
SANDVIK AB
发明人
分类号
E21B17/042;F16L15/00;(IPC1-7):E21B17/10
主分类号
E21B17/042
代理机构
代理人
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地址
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