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发明名称
DEVICE FOR JOINING DEEP-WELL GEOPHYSICAL INSTRUMENTS
摘要
申请公布号
SU1446284(A1)
申请公布日期
1988.12.23
申请号
SU19874229889
申请日期
1987.04.13
申请人
VNII NEFTEPROMY GEOFIZ
发明人
ELPAEV NIKOLAJ A,SU;DMITRIEV VALERIJ N,SU;KOROVIN VALERIJ M,SU;MAGAFUROVA GYUZEL M,SU
分类号
E21B47/01;(IPC1-7):E21B47/00
主分类号
E21B47/01
代理机构
代理人
主权项
地址
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