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经营范围
发明名称
ARRANGEMENT FOR AIRING MINE SHAFTS
摘要
申请公布号
SU1484969(A1)
申请公布日期
1989.06.07
申请号
SU19874260587
申请日期
1987.06.10
申请人
VNII ORG MEKH SHAKHT
发明人
LUKYANOV VALERIJ S,SU;DUBINA PETR P,SU;AGARKOV ANATOLIJ K,SU;SOBOLEVA LYUDMILA V,SU
分类号
E21F1/00
主分类号
E21F1/00
代理机构
代理人
主权项
地址
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