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发明名称
DEVICE FOR STAGED CEMENTING OF WELLS
摘要
申请公布号
RU1795084(C)
申请公布日期
1993.02.15
申请号
SU19904846451
申请日期
1990.07.06
申请人
VNII BUROVOJ TEKHNIKI;MADYAR SENKHIDROGENIPARI KUTATO-FEJLESTEO INTEZET;TAURUS GUMIIPARI VALLALAT TAURUS
发明人
FARUKSHIN LEV KH,SU;CHUEV PETR A,SU;MORZHITS PETR A,SU;ZHOKA ISHTVAN,HU;GERGENI PETER,HU;KOSO FERENTS,HU;SABO MATYASH,HU
分类号
E21B33/14;E21B33/05;E21B33/13;E21B33/16
主分类号
E21B33/14
代理机构
代理人
主权项
地址
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