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发明名称
MEJORAS EN LOS SITEMAS DE OBTURACIËN
摘要
申请公布号
ES254883(A1)
申请公布日期
1960.04.16
申请号
ES19830002548
申请日期
1959.12.23
申请人
IGLESIAS ALVAREZ, JOSE LUIS
发明人
分类号
F16K;(IPC1-7):F16K
主分类号
F16K
代理机构
代理人
主权项
地址
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