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发明名称
Improvements in anchor supports for roofs and walls of underground workings
摘要
申请公布号
GB956449(A)
申请公布日期
1964.04.29
申请号
GB19600025117
申请日期
1960.07.19
申请人
BECKER-PRUNTE G.M.B.H.
发明人
分类号
E21D21/00
主分类号
E21D21/00
代理机构
代理人
主权项
地址
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