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发明名称
ARRANGEMENT FOR AUTOMATIC ISOLATION OF MINE WORKINGS
摘要
申请公布号
SU1462000(A1)
申请公布日期
1989.02.28
申请号
SU19874195897
申请日期
1987.02.17
申请人
NII PO PROBLEMAM KURSKOJ MAGNITNOJ ANOMALII IM.L.D.SHEVYAKOVA
发明人
KOVALENKO ANATOLIJ I,SU;TSYPIN DMITRIJ A,SU
分类号
E21F17/12
主分类号
E21F17/12
代理机构
代理人
主权项
地址
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