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发明名称
METHOD FOR REINFORCING A BOREHOLE SECURED BY A CASING
摘要
申请公布号
RU1809084(C)
申请公布日期
1993.04.15
申请号
SU19904868593
申请日期
1990.09.25
申请人
GOSUDARSTVENNYJ PROEKTNYJ INSTITUT "YUZHGIPROSHAKHT"
发明人
UMANSKIJ PETR YA;VOLKOV NAUM R;KONCHA PAVEL S
分类号
E21D7/00;(IPC1-7):E21D7/00
主分类号
E21D7/00
代理机构
代理人
主权项
地址
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