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发明名称
METHOD OF PROTECTING MINE WORKINGS AGAINST SUBSOIL WATER
摘要
申请公布号
SU1260522(A1)
申请公布日期
1986.09.30
申请号
SU19853846926
申请日期
1985.01.24
申请人
DN GORNYJ I IM.ARTEMA
发明人
ANTROPTSEV ALEKSANDR M,SU;DRIZHENKO ANATOLIJ YU,SU;DRIZHENKO NATALYA A,SU
分类号
E21C41/00
主分类号
E21C41/00
代理机构
代理人
主权项
地址
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