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经营范围
发明名称
NUEVA VALVULA DE DESCARGA.
摘要
申请公布号
ES165342(Y)
申请公布日期
1971.09.01
申请号
ES19710165342U
申请日期
1971.01.20
申请人
PARRAZAR LLANOS
发明人
分类号
E03D;F16K
主分类号
E03D
代理机构
代理人
主权项
地址
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