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发明名称
METHOD FOR FORMATION OF ICE-ROCK GUARD ROUND CONSTRUCTED WORKING
摘要
申请公布号
SU1747695(A1)
申请公布日期
1992.07.15
申请号
SU19894768445
申请日期
1989.12.12
申请人
LE GORNYJ I IM.G.V.PLEKHANOVA
发明人
BOGUSLAVSKIJ EMIL I,SU;MILEKHIN GEORGIJ G,SU;ALIBEKOV RUSLAN G,SU;ALIBEKOVA EKATERINA G,SU
分类号
E21C41/16
主分类号
E21C41/16
代理机构
代理人
主权项
地址
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