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发明名称
METHOD OF TRANSPORTING HEAVY MACHINES AND EQUIPMENT IN UNDERGROUND MINE EXCAVATIONS
摘要
申请公布号
PL135810(B1)
申请公布日期
1985.12.31
申请号
PL19820238379
申请日期
1982.09.21
申请人
发明人
分类号
E21F;E21F13/08;(IPC1-7):E21F13/08
主分类号
E21F
代理机构
代理人
主权项
地址
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