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经营范围
发明名称
APERFEICOAMENTO EM VALVULA DE DESCARGA
摘要
申请公布号
BR7803269(A)
申请公布日期
1978.11.21
申请号
BR19780003269
申请日期
1978.05.23
申请人
GRIZOTTO D
发明人
GRIZOTTO D
分类号
E03D3/10;(IPC1-7):E03D3/10
主分类号
E03D3/10
代理机构
代理人
主权项
地址
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