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发明名称
MINING MACHINE FOR UNDERGROUND MINES
摘要
申请公布号
PL133240(B1)
申请公布日期
1985.05.31
申请号
PL19820235244
申请日期
1982.02.26
申请人
发明人
分类号
E21C27/24;E21C27/32;(IPC1-7):E21C27/32
主分类号
E21C27/24
代理机构
代理人
主权项
地址
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