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发明名称
DEVICE FOR CENTERING DEEP-WELL DEVICES
摘要
申请公布号
SU916748(A1)
申请公布日期
1982.03.30
申请号
SU19802982302
申请日期
1980.08.29
申请人
VNII NEFTEPROMYSLOVOJ GEOFIZIKI
发明人
LAPTEV NIKOLAJ V,SU;KOSTINA VALENTINA I,SU;BERNSHTEJN DAVID A,SU;ISLAMOV ALFRED M,SU;BARSKIJ ISAAK M,SU;NAPOLSKIJ VIKTOR A,SU
分类号
E21B47/08;G01V13/00;(IPC1-7):E21B47/08
主分类号
E21B47/08
代理机构
代理人
主权项
地址
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