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发明名称
PLACA RECTANGULAR PREFABRICADA, DE YESO, ALIGERADA.
摘要
申请公布号
ES229050(Y)
申请公布日期
1977.12.16
申请号
ES19500002290U
申请日期
1977.05.20
申请人
发明人
分类号
E04C;(IPC1-7):04C/
主分类号
E04C
代理机构
代理人
主权项
地址
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