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发明名称
NUEVO SISTEMA DE CANALIZACIËN
摘要
申请公布号
ES265480(A3)
申请公布日期
1961.05.16
申请号
ES19800002654
申请日期
1961.03.08
申请人
GRANDJEAN, PAUL;BARRAUD, JEAN
发明人
分类号
E02B;(IPC1-7):E02B
主分类号
E02B
代理机构
代理人
主权项
地址
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