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发明名称
PERFECCIONAMIENTOS EN LA CONSTRUCCION DE ESCALERAS PLEGA- BLES.
摘要
申请公布号
ES368853(A1)
申请公布日期
1971.05.16
申请号
ES19690368853
申请日期
1969.06.26
申请人
LOIX
发明人
分类号
E04F11/06;E06C9/08
主分类号
E04F11/06
代理机构
代理人
主权项
地址
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