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发明名称
Nachgiebiger Streckenausbaurahmen aus I- oder aehnlichem Profil
摘要
申请公布号
DE1058455(B)
申请公布日期
1959.06.04
申请号
DE1953H016272
申请日期
1953.05.02
申请人
FA. ALBERT HOFFMANN
发明人
HOFFMANN WALTER;HOFFMANN HEINRICH
分类号
E21D11/18
主分类号
E21D11/18
代理机构
代理人
主权项
地址
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