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发明名称
METHOD OF INCREASING STABILITY OF PERMANENT MINE WORKING
摘要
申请公布号
SU825982(A1)
申请公布日期
1981.04.30
申请号
SU19792816441
申请日期
1979.08.17
申请人
VNII GORNOJ GEOMEKHANIKI MARKSHEJDERSKOGO DELA
发明人
BASINSKIJ YURIJ M,SU;MOROZOV MIKHAIL P,SU;KULESHOV VIKTOR M,SU;PIKHOVKIN VIKTOR S,SU
分类号
E21D9/00;E21C41/00;(IPC1-7):E21D9/00
主分类号
E21D9/00
代理机构
代理人
主权项
地址
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