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发明名称
APERFEICOAMENTO EM MOINHOS DE MARTELOS
摘要
申请公布号
BR7902991(A)
申请公布日期
1980.11.11
申请号
BR19790002991
申请日期
1979.05.11
申请人
MAB S/A
发明人
DE BARROS FILHO S
分类号
B02C13/04;(IPC1-7):B02C13/04
主分类号
B02C13/04
代理机构
代理人
主权项
地址
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