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发明名称
ROOF SUPPORT FOR ASCENDING MINE WORKINGS
摘要
申请公布号
SU891938(A1)
申请公布日期
1981.12.23
申请号
SU19802907792
申请日期
1980.04.10
申请人
VNI PK UGOLNYJ I KUZNIUI
发明人
ARSENOV NIKOLAJ S,SU;YAKOVLEV NIKOLAJ I,SU;BELAN NIKOLAJ A,SU;SMOLIN MAKAR M,SU;GUSYATINA NATALYA I,SU
分类号
E21D5/00;E21D5/08;(IPC1-7):E21D5/00
主分类号
E21D5/00
代理机构
代理人
主权项
地址
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