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发明名称
BOHRMEISSELDÜSENANORDNUNG, DIESE ENTHALTENDE EINSATZANORDNUNG UND VERFAHREN ZUR HERSTELLUNG ODER NACHRÜSTUNG EINES STAHLKÖRPERMEISSELS ZUR VERWENDUNG MIT DER EINSATZANORDNUNG
摘要
申请公布号
AT517223(T)
申请公布日期
2011.08.15
申请号
AT20070862012T
申请日期
2007.11.14
申请人
BAKER HUGHES INCORPORATED
发明人
BILEN, JUAN MIGUEL
分类号
E21B10/61
主分类号
E21B10/61
代理机构
代理人
主权项
地址
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