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发明名称
Bohrgerät und Verfahren zum Herstellen von Erdbohrungen
摘要
申请公布号
DE10159712(B4)
申请公布日期
2004.12.02
申请号
DE20011059712
申请日期
2001.12.05
申请人
TRACTO-TECHNIK GMBH
发明人
VOELKEL, GERHARD
分类号
E21B7/04;E21B19/20;(IPC1-7):E21B7/20;F16L1/028
主分类号
E21B7/04
代理机构
代理人
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地址
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