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发明名称
VERFAHREN UND ANORDNUNG ZUR REGELUNG DER VORSCHUBBEWEGUNG EINER BOHRSTANGE BEI GESTEINSBOHRUNG
摘要
申请公布号
DE3421388(A1)
申请公布日期
1984.12.20
申请号
DE19843421388
申请日期
1984.06.08
申请人
OSAKEYHTIOE TAMPELLA AB
发明人
HARTIALA,EERO;PAASONEN,HANNU;KUUSENTO,JAAKKO
分类号
E21B44/02;E21B3/00;E21B44/06;(IPC1-7):E21C1/10
主分类号
E21B44/02
代理机构
代理人
主权项
地址
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