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发明名称
PROCESS FOR CLOSING BY FILLING OF SHAFTS IN MINES, AND STRUCTURE FOR SUPPORTING THE FILLING MATERIAL
摘要
申请公布号
HU9200631(D0)
申请公布日期
1992.05.28
申请号
HU19920000631
申请日期
1992.02.26
申请人
KOEZPONTI BANYASZATI FEJLESZTESI INTEZET,HU
发明人
KOVACS,GABOR,HU
分类号
E21F15/00
主分类号
E21F15/00
代理机构
代理人
主权项
地址
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