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发明名称
Frei tragende Wendeltreppe, vorzugsweise aus Holz
摘要
申请公布号
DE961390(C)
申请公布日期
1957.04.04
申请号
DE1955J010482
申请日期
1955.07.29
申请人
MATTHIAS JAKOBI
发明人
JAKOBI MATTHIAS
分类号
E04F11/032
主分类号
E04F11/032
代理机构
代理人
主权项
地址
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