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发明名称
METHOD OF DISINTEGRATING LONGWALL FACE COAL PILLAR
摘要
申请公布号
CZ9102765(A3)
申请公布日期
1993.03.17
申请号
CS19910002765
申请日期
1991.09.09
申请人
SUB - BANA CIGEL ODSTEPNY ZAVOD
发明人
PIPISKA VLADIMIR ING.;SMIDA LADISLAV ING.;PUTOS TIMOTEJ ING.
分类号
E21C25/16;E21C41/16;(IPC1-7):E21C25/16
主分类号
E21C25/16
代理机构
代理人
主权项
地址
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