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发明名称
METHOD OF PREPARING COAL DEPOSITS UNDER CRUMP HAZARD FOR MINING THEM
摘要
申请公布号
PL248609(A1)
申请公布日期
1986.01.14
申请号
PL19840248609
申请日期
1984.07.05
申请人
KOPALNIA WEGLA KAMIENNEGO WIEC
发明人
GIL HENRYK;KUREK EUGENIUSZ;KOZIOL ERWIN;MUSIOL STEFAN;KACZMARCZYK ANDRZEJ;BUREK MARIAN
分类号
E21C;(IPC1-7):E21C/
主分类号
E21C
代理机构
代理人
主权项
地址
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