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发明名称
DEEP-WELL RETAINING DEVICE
摘要
申请公布号
SU1086136(A1)
申请公布日期
1984.04.15
申请号
SU19833546382
申请日期
1983.01.28
申请人
VOSTOCHNO-SIBIRSKIJ NII GEOLOGII,×EO´ô³ôKô ô MôHEPAóÓHO×O CÕPÓù
发明人
KULAGIN VLADIMIR S,SU;KUZNECHENKOV EVGENIJ P,SU;TARAEV GENNADIJ P,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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