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发明名称
ESCALERA PLEGABLE PERFECCIONADA
摘要
申请公布号
ES248551(Y)
申请公布日期
1981.01.16
申请号
ES19510002485U
申请日期
1980.02.12
申请人
发明人
分类号
E06C1/54;(IPC1-7):06C1/54
主分类号
E06C1/54
代理机构
代理人
主权项
地址
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