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发明名称
APPARATUS FOR PROTECTING PILLAR WHEN LETTING-OUT ORE
摘要
申请公布号
SU1084446(A1)
申请公布日期
1984.04.07
申请号
SU19823522223
申请日期
1982.12.14
申请人
DN GORNYJ I IM.ARTEMA
发明人
KOVALENKO ANATOLIJ I,SU;LUKASHENKO ANATOLIJ G,SU;FISH GENRIKH D,SU;MIROSHNICHENKO YURIJ K,SU
分类号
E21D11/00;(IPC1-7):E21D11/00
主分类号
E21D11/00
代理机构
代理人
主权项
地址
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