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发明名称
METHOD FOR EXPLOITATION OF STEEP COAL SEAMS WITH BACKFILL OF WORKED SPACE
摘要
申请公布号
RU2064580(C1)
申请公布日期
1996.07.27
申请号
RU19940011890
申请日期
1994.04.05
申请人
AKTSIONERNOE OBSHCHESTVO "PROKOPEVSKUGOL"
发明人
FAJNER ILYA A;KHAN VALENTIN V;YAKOVLEV NIKOLAJ I;SHAKHURDIN SERGEJ A;SUKHOVOLSKIJ STEPAN N;LEGOSTAEV ANATOLIJ V
分类号
E21C41/18;(IPC1-7):E21C41/18
主分类号
E21C41/18
代理机构
代理人
主权项
地址
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