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发明名称
Extension for a drilling rod
摘要
申请公布号
EP2278115(B1)
申请公布日期
2011.11.09
申请号
EP20090008093
申请日期
2009.06.19
申请人
BAUER SPEZIALTIEFBAU GMBH
发明人
SCHMITT, THOMAS
分类号
E21B17/07;E21B47/02
主分类号
E21B17/07
代理机构
代理人
主权项
地址
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