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发明名称
UNIT FOR EXCAVATING THIN COAL LAYERS
摘要
申请公布号
SU848665(A1)
申请公布日期
1981.07.23
申请号
SU19792839259
申请日期
1979.11.13
申请人
INST GORNOGO DELA SO AN SSSR
发明人
ANUFRIEV VIKTOR E,SU;GRITSKO GENNADIJ I,SU;KRYLOV VLADIMIR F,SU;VYLEGZHANIN VYACHESLAV N,SU
分类号
E21D19/02;E21D19/06;E21D23/00;(IPC1-7):E21D23/00
主分类号
E21D19/02
代理机构
代理人
主权项
地址
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