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发明名称
SPOSOB EKSPLOATACJI GRUBYCH POKLADOW
摘要
申请公布号
PL200492(A1)
申请公布日期
1978.07.03
申请号
PL19770200492
申请日期
1977.08.27
申请人
GLOWNY INSTYTUT GORNICTWA
发明人
SZCZUROWSKI ADAM;LOJAS JOZEF
分类号
E21F;(IPC1-7):E21F/
主分类号
E21F
代理机构
代理人
主权项
地址
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