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发明名称
SISTEMA PARA DESOBSTRUIR CHAPA PERFURADA DE PENEIRA
摘要
申请公布号
BR8804109(A)
申请公布日期
1990.03.20
申请号
BR1988PI04109
申请日期
1988.08.09
申请人
HELIO EHLERT
发明人
HELIO EHLERT
分类号
B07B1/28;B07B1/52;(IPC1-7):B07B1/52
主分类号
B07B1/28
代理机构
代理人
主权项
地址
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