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发明名称
Improvements in or relating to methods of sealing the walls of underground workings
摘要
申请公布号
GB955606(A)
申请公布日期
1964.04.15
申请号
GB19600042607
申请日期
1960.12.12
申请人
BERGWERKSVERBAND, G.M.B.H.
发明人
分类号
E21D11/00;E21F5/00
主分类号
E21D11/00
代理机构
代理人
主权项
地址
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