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发明名称
VERFAHREN UND VORRICHTUNG ZUM STEUERN DES BOHRVORGANGS BEIM ERDBOHREN
摘要
申请公布号
DE69901697(D1)
申请公布日期
2002.07.11
申请号
DE19996001697
申请日期
1999.03.16
申请人
SANDVIK AB, SANDVIKEN
发明人
MUUTTONEN, TIMO;KIIKKA, TIMO;MAEKI, JORMA
分类号
B25D9/26;E21B1/00;E21B1/38;E21B44/06;(IPC1-7):B25D9/26
主分类号
B25D9/26
代理机构
代理人
主权项
地址
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