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发明名称
Improvements in or relating to supports for dust barriers for use in colliery workings
摘要
申请公布号
GB927949(A)
申请公布日期
1963.06.06
申请号
GB19610001640
申请日期
1961.01.14
申请人
S.W.M. (MACHINERY) LIMITED
发明人
GODSELL ALBERT VICTOR
分类号
E21F5/14
主分类号
E21F5/14
代理机构
代理人
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地址
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