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发明名称
Improvements relating to link linings for roof and wall supporting purposes in mines
摘要
申请公布号
GB760630(A)
申请公布日期
1956.11.07
申请号
GB19540015421
申请日期
1954.05.25
申请人
LOEBBERT & CO. G.M.B.H.
发明人
分类号
E21D11/15
主分类号
E21D11/15
代理机构
代理人
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