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发明名称
Profil fuer den Streb- und Streckenausbau
摘要
申请公布号
DE833482(C)
申请公布日期
1952.03.10
申请号
DE1948P003353
申请日期
1948.10.02
申请人
GUTEHOFFNUNGSHUETTE OBERHAUSEN A.G.
发明人
HUSSMANN WILHELM
分类号
E21D15/502
主分类号
E21D15/502
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代理人
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地址
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