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发明名称
Gleitbogenausbau aus gewalzten Rinnenprofilen, insbesondere fuer Grubenstrecken
摘要
申请公布号
DE1167778(B)
申请公布日期
1964.04.16
申请号
DE1959B053283
申请日期
1959.05.19
申请人
BOCHUMER EISENHUETTE HEINTZMANN & CO.
发明人
分类号
E21D11/20
主分类号
E21D11/20
代理机构
代理人
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地址
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