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发明名称
APERFEICOAMENTO INTRODUZIDOS EM VALVULA DE DESCARGA FLEXIVEL COM REGISTRO INTEGRADO
摘要
申请公布号
BR8600979(A)
申请公布日期
1987.10.27
申请号
BR1986PI00979
申请日期
1986.03.07
申请人
NERGIO CORREA LEITE
发明人
NERGIO CORREA LEITE
分类号
E03D1/34;(IPC1-7):E03D1/34
主分类号
E03D1/34
代理机构
代理人
主权项
地址
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