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发明名称
Improvements in or relating to clamping devices for mine roof supports, particularlypit-props
摘要
申请公布号
GB886321(A)
申请公布日期
1962.01.03
申请号
GB19580027139
申请日期
1958.08.25
申请人
WILLY EGGEMANN;EBERHARD VON CAMPENHAUSEN
发明人
分类号
E21D15/32
主分类号
E21D15/32
代理机构
代理人
主权项
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