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发明名称
PERFECCIONAMIENTOS INTRODUCIDOS EN LAS BRIDAS DESTINADAS PARA EMPALME DE TUBOS.
摘要
申请公布号
ES345110(A1)
申请公布日期
1968.10.16
申请号
ES19100003451
申请日期
1967.09.15
申请人
CAETANO ESPINOSA
发明人
分类号
F16L;(IPC1-7):F16L/
主分类号
F16L
代理机构
代理人
主权项
地址
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