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经营范围
发明名称
PERFECCIONAMIENTOS EN UNA BARRERA DE PASILLO.
摘要
申请公布号
ES400220(A3)
申请公布日期
1975.01.01
申请号
ES19200004002
申请日期
1972.02.28
申请人
BAUER
发明人
分类号
E04C;E04H;(IPC1-7):04C/;04H/
主分类号
E04C
代理机构
代理人
主权项
地址
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