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发明名称
Freitragende Treppe aus einzelnen miteinander verbundenen Treppenstufen
摘要
申请公布号
DE1928247(A1)
申请公布日期
1971.06.09
申请号
DE19691928247
申请日期
1969.06.03
申请人
THUMM INDUSTRIE GMBH
发明人
THUMM,GUENTER
分类号
E04F11/035
主分类号
E04F11/035
代理机构
代理人
主权项
地址
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