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发明名称
(B1) ;ROOF SUPPORT FOR A MINE WALL-GALLERY CROSSING POINT
摘要
申请公布号
PL223455(A1)
申请公布日期
1981.02.27
申请号
PL19800223455
申请日期
1980.04.14
申请人
BANYASZATI FEJLESZTESI INTEZET;OROSZLANYI SZANBANYAK
发明人
IGNATKO GYORGY;ILYES ZOLTAN;NEMETH TERENC;RACZ MATYAS;VARGA ALBERT;VARRO JENO
分类号
E21D23/00;E21F13/06;(IPC1-7):E21C/
主分类号
E21D23/00
代理机构
代理人
主权项
地址
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