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经营范围
发明名称
HYDRAULIC PROP OF MINE SUPPORT
摘要
申请公布号
SU1645541(A1)
申请公布日期
1991.04.30
申请号
SU19894682637
申请日期
1989.04.24
申请人
DO NI UGOLNYJ INSTITUT
发明人
GORDIENKO NIKOLAJ F,SU;SHUSTROV NIKOLAJ I,SU;MUKHIN EVGENIJ P,SU;GARNAGA NIKOLAJ N,SU;CHALYJ SERGEJ A,SU
分类号
E21D15/44
主分类号
E21D15/44
代理机构
代理人
主权项
地址
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