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发明名称
ELECTROMECHANICAL DRIVE FOR DOWNHOLE INSTRUMENTS
摘要
申请公布号
SU1265296(A1)
申请公布日期
1986.10.23
申请号
SU19843809531
申请日期
1984.11.06
申请人
VNII NEFTEPROMY GEOFIZ
发明人
PROKSHIN SERGEJ S,SU;SEMENOV EVGENIJ V,SU;VALSHTEJN VYACHESLAV YU,SU
分类号
E21B47/00
主分类号
E21B47/00
代理机构
代理人
主权项
地址
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