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发明名称
Nachgiebiger Grubenausbau unter Benutzung von Spannbuegeln
摘要
申请公布号
DE969009(C)
申请公布日期
1958.04.24
申请号
DE1955B035179
申请日期
1955.04.01
申请人
BERGBAUSTAHL G.M.B.H.
发明人
JASPER KARL THEODOR;FELDE DR. HANS WERNER VOM
分类号
E21D11/22
主分类号
E21D11/22
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代理人
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