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发明名称
KUNSTSTEIN-TREPPENSTUFE.
摘要
申请公布号
DE1665967(U)
申请公布日期
1953.10.29
申请号
DE195300SC881U
申请日期
1953.08.06
申请人
FA. WILHELM SCHILD
发明人
分类号
主分类号
代理机构
代理人
主权项
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