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发明名称
SHIELD SUPPORT CONTROL IN MINING
摘要
申请公布号
GB2087464(B)
申请公布日期
1984.04.11
申请号
GB19810028626
申请日期
1981.09.22
申请人
BERGWERKSVERBAND GMBH
发明人
分类号
E21D23/16;(IPC1-7):E21D23/16
主分类号
E21D23/16
代理机构
代理人
主权项
地址
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