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发明名称
VORRICHTUNG ZUR AUFWENDUNG EINES DREHMOMENTES AUF EIN ROHRFÖRMIGES ELEMENT
摘要
申请公布号
AT131572(T)
申请公布日期
1995.12.15
申请号
AT19910308109T
申请日期
1991.09.04
申请人
FRANK'S INTERNATIONAL LTD
发明人
MOODY, VICTOR;JENNER, ANDREW
分类号
E21B19/16;(IPC1-7):E21B19/16
主分类号
E21B19/16
代理机构
代理人
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