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发明名称
ARRANGEMENT FOR CLEANING THE SUMP OF MINE SHAFT
摘要
申请公布号
SU1326733(A1)
申请公布日期
1987.07.30
申请号
SU19853951701
申请日期
1985.09.10
申请人
DUN BORIS L,SU;LEVIN MIKHAIL G,SU;BURIK ALEKSANDR V,SU;PROKHOROV BORIS M,SU
发明人
DUN BORIS L,SU;LEVIN MIKHAIL G,SU;BURIK ALEKSANDR V,SU;PROKHOROV BORIS M,SU
分类号
E21D7/00
主分类号
E21D7/00
代理机构
代理人
主权项
地址
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