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发明名称
METHOD OF WORKING SOIL AT FACE COMPOSED OF LAYERS OF DIFFERENT STRENGTH
摘要
申请公布号
SU1404650(A1)
申请公布日期
1988.06.23
申请号
SU19864020643
申请日期
1986.01.30
申请人
KHODOSH VLADIMIR A,SU;MAKSIMOV BORIS S,SU;FISHMAN IOSIF D,SU;TATARINSKIJ VLADIMIR B,SU;AVERYANOV VLADIMIR A,SU
发明人
KHODOSH VLADIMIR A,SU;MAKSIMOV BORIS S,SU;FISHMAN IOSIF D,SU;TATARINSKIJ VLADIMIR B,SU;AVERYANOV VLADIMIR A,SU
分类号
E21D9/10;E21D9/11
主分类号
E21D9/10
代理机构
代理人
主权项
地址
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