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发明名称
Aufbrechvorrichtung für Bohrgestänge
摘要
申请公布号
DE69318249(T2)
申请公布日期
1999.01.07
申请号
DE19936018249T
申请日期
1993.08.31
申请人
THE CHARLES MACHINE WORKS INC., PERRY, OKLA., US
发明人
DEKEN, ARTHUR D., PERRY, OKLAHOMA 73077, US;SEWELL, CODY, PERRY, OKLAHOMA 73077, US
分类号
E21B19/18;E21B3/02;E21B17/043;E21B19/16;(IPC1-7):E21B19/16
主分类号
E21B19/18
代理机构
代理人
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