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发明名称
ARRANGEMENT FOR DRIVING ASCENDING WORKINGS
摘要
申请公布号
SU1528913(A1)
申请公布日期
1989.12.15
申请号
SU19874321605
申请日期
1987.10.27
申请人
VNII ORG MEKH SHAKHT
发明人
GROMOV ANATOLIJ A,SU;FEDOROV SERGEJ V,SU
分类号
E21D5/12
主分类号
E21D5/12
代理机构
代理人
主权项
地址
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