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发明名称
ARRANGEMENT FOR CLEANING MINE SHAFT SUMPS
摘要
申请公布号
SU724751(A1)
申请公布日期
1980.03.30
申请号
SU19782690785
申请日期
1978.11.30
申请人
ZENCHENKO PETR G,SU
发明人
ZENCHENKO PETR G,SU
分类号
E21D5/12;(IPC1-7):E21D5/12
主分类号
E21D5/12
代理机构
代理人
主权项
地址
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