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经营范围
发明名称
ESCALERA PLEGABLE MEJORADA.
摘要
申请公布号
ES160229(Y)
申请公布日期
1971.05.16
申请号
ES19700160229U
申请日期
1970.07.10
申请人
DRAY, S. A.
发明人
分类号
E06C
主分类号
E06C
代理机构
代理人
主权项
地址
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