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发明名称
Massivtreppe mit Stahlblechwangen
摘要
申请公布号
DE824251(C)
申请公布日期
1951.12.10
申请号
DE1950H004809
申请日期
1950.08.05
申请人
OTTO HOEHNE
发明人
HOEHNE OTTO
分类号
E04F11/025
主分类号
E04F11/025
代理机构
代理人
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