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发明名称
FONTE PORTATIL DE EXTRACAO DE AGUA
摘要
申请公布号
BR7807796(A)
申请公布日期
1979.04.10
申请号
BR19780007796
申请日期
1978.11.22
申请人
AVILA R
发明人
AVILA R
分类号
E21B7/00;(IPC1-7):E21B7/00
主分类号
E21B7/00
代理机构
代理人
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地址
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