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发明名称
DISPOSITIVO DE ESTANQUEIDAD PERFECCIONADO PARA VALVULAS
摘要
申请公布号
ES254771(Y)
申请公布日期
1981.10.16
申请号
ES19710002547U
申请日期
1980.12.01
申请人
发明人
分类号
F16K41/00;(IPC1-7):16K41/00
主分类号
F16K41/00
代理机构
代理人
主权项
地址
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