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经营范围
发明名称
DRILL PIPE STRING DAMPER
摘要
申请公布号
SU857426(A1)
申请公布日期
1981.08.23
申请号
SU19792743631
申请日期
1979.03.30
申请人
IVANO-FRANKOVSKIJ I NEFTI GAZA (IFING)
发明人
OGORODNIKOV PETR I,SU;VRONSKIJ IGOR YU,SU;LISKANICH MIKHAIL V,SU;BORISEVICH BOGDAN D,SU;VEKERIK VASILIJ I,SU;PEKARSKIJ NIKOLAJ F,SU
分类号
E21B17/06;(IPC1-7):E21B17/06
主分类号
E21B17/06
代理机构
代理人
主权项
地址
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