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发明名称
MINE SHAFT TIMBERING
摘要
申请公布号
SU989074(A1)
申请公布日期
1983.01.15
申请号
SU19813338435
申请日期
1981.09.15
申请人
SP PK T BYURO MINISTERSTVA TSVETNOJ METALLURGII KAZSSR
发明人
EDILBAEV IBRAGIM B,SU
分类号
E21D1/00;(IPC1-7):E21D1/00
主分类号
E21D1/00
代理机构
代理人
主权项
地址
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