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发明名称
ARRANGEMENT FOR LOWERING LIQUID LEVEL IN OIL WELLS
摘要
申请公布号
SU669049(A1)
申请公布日期
1979.06.25
申请号
SU19681207370
申请日期
1968.01.03
申请人
VOSTOCHNYJ NI NEFTEGAZOVYJ I PO TEKHNIKE BEZOPASNOSTI PROMSANITARII
发明人
YAGUDIN MUSANIF S,SU;YUNUSOV FELIKS KH,SU;YURIN IVAN YA,SU;SAFIULLIN RIFGAT KH,SU
分类号
E21B47/04;E21B27/00;E21B47/047;(IPC1-7):E21B47/04
主分类号
E21B47/04
代理机构
代理人
主权项
地址
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