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经营范围
发明名称
Rock drilling device
摘要
申请公布号
AU651494(B2)
申请公布日期
1994.07.21
申请号
AU19920025307
申请日期
1992.09.23
申请人
UNIROC AB
发明人
JORGEN RODERT;KURT ANDERSSON
分类号
E21B3/00;E21B7/20;E21B17/00;E21B17/042;(IPC1-7):E21B17/043;E21B17/04
主分类号
E21B3/00
代理机构
代理人
主权项
地址
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