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发明名称
Válvula de retorno perfeccionada
摘要
申请公布号
ES74582(U)
申请公布日期
1959.11.01
申请号
ES19820000745U
申请日期
1959.06.16
申请人
MARÍN SEGARRA, SANTIAGO
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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