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发明名称
METHOD OF ROOF CONTROL WHEN WORKING THIN SLOPING COAL BEDS
摘要
申请公布号
SU968403(A1)
申请公布日期
1982.10.23
申请号
SU19803219505
申请日期
1980.12.17
申请人
G MAKEEVSKIJ REVOLYUTSII NII PO BEZOPASNOSTI RABOT V GORNOJ PROMYSHLENNOSTI
发明人
GROMOV VASILIJ A,SU;SAMOJLENKO VIKTOR I,SU;PETRENKO GRIGORIJ A,SU;MALYUGA MIKHAIL F,SU;POLSKIJ NIKOLAJ D,SU;DEMIDOV IGOR P,SU
分类号
(IPC1-7):E21C41/04
主分类号
(IPC1-7):E21C41/04
代理机构
代理人
主权项
地址
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