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发明名称
Bohrkopf und Bohrverfahren für ein Horizontalbohrgerät
摘要
申请公布号
DE10101731(C2)
申请公布日期
2003.09.18
申请号
DE20011001731
申请日期
2001.01.15
申请人
TRACTO-TECHNIK GMBH
发明人
PUETTMANN, FRANZ-JOSEF
分类号
E21B7/04;E21B10/36;(IPC1-7):E21B10/36;E21B7/26
主分类号
E21B7/04
代理机构
代理人
主权项
地址
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