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发明名称
CUTTER-LOADER FOR SELECTIVE MINING OF MINERAL BEDS
摘要
申请公布号
SU1613601(A1)
申请公布日期
1990.12.15
申请号
SU19884463666
申请日期
1988.07.19
申请人
GERTSEN NIKOLAJ,SU
发明人
GERTSEN NIKOLAJ I,SU
分类号
E21C27/24
主分类号
E21C27/24
代理机构
代理人
主权项
地址
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