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经营范围
发明名称
PERFEZIONAMENTO NEI DENTI DELLE CUCCHIAIE PER IL RECUPERO DI MINERALI
摘要
申请公布号
IT245593(Y1)
申请公布日期
2002.03.22
申请号
IT1998RM00065U
申请日期
1998.03.04
申请人
C0MPANHIA VALE DO RIO DOCE
发明人
DE SAMPAIO MONTEIRO JR CARLOS ALBERTO;NETO SEVERINO ALMEIDA;TORRES MANOEL DAMAS
分类号
E02F9/28
主分类号
E02F9/28
代理机构
代理人
主权项
地址
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