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发明名称
DEVICE FOR SETTING CONTROLLABLE CUTOFF VALVE IN WELL
摘要
申请公布号
SU1606685(A1)
申请公布日期
1990.11.15
申请号
SU19874299816
申请日期
1987.07.02
申请人
OSOBOE K BYURO PO PROEKTIROVANIYU NEFTEGAZODOBYVAYUSHCHIKH MASHIN OBORUDOVANIYA
发明人
EFENDIEV OKTAJ I,SU;AKHMEDOV KHIKMET YU,SU
分类号
E21B23/00;E21B34/06;(IPC1-7):E21B34/06
主分类号
E21B23/00
代理机构
代理人
主权项
地址
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