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发明名称
PERFECCIONAMIENTOS INTRODUCIDOS EN LOS DISPOSITIVOS PARA OBTURAR FUGAS EN UNA JUNTA HERMETICA ENTRE DOS SECCIONES DE TUBERIA.
摘要
申请公布号
ES415613(A1)
申请公布日期
1976.02.01
申请号
ES19130004156
申请日期
1973.06.06
申请人
A. ZEGWAARD & ZN
发明人
分类号
E03F;F16L;(IPC1-7):16L/;03F/
主分类号
E03F
代理机构
代理人
主权项
地址
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