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发明名称
DEVICE FOR FORMATION OF WELL
摘要
申请公布号
RU1833451(C)
申请公布日期
1993.08.07
申请号
SU19915020196
申请日期
1991.07.02
申请人
BURDUKOVSKIJ ALEKSANDR I;GOJKHMAN YAKOV A;NIKIFOROV IVAN I;SMIRNOV GENNADIJ A;YAKIMOV VADIM P;SVIRSHCHEVSKIJ VALENTIN K
发明人
BURDUKOVSKIJ ALEKSANDR I;GOJKHMAN YAKOV A;NIKIFOROV IVAN I;SMIRNOV GENNADIJ A;YAKIMOV VADIM P;SVIRSHCHEVSKIJ VALENTIN K
分类号
E21B7/28
主分类号
E21B7/28
代理机构
代理人
主权项
地址
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