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经营范围
发明名称
CACHIMBO DUPLO
摘要
申请公布号
BR6001719(U)
申请公布日期
1982.08.03
申请号
BR19800001719U
申请日期
1980.12.19
申请人
COMPANHIA SIDERURGICA NACIONAL
发明人
VANNIER SYLVIO MONTEIRO
分类号
B21B39/00;(IPC1-7):B21B39/00
主分类号
B21B39/00
代理机构
代理人
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