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经营范围
发明名称
Chaveta retrátil
摘要
申请公布号
BR9402090(A)
申请公布日期
1995.12.26
申请号
BR1994PI02090
申请日期
1994.05.27
申请人
COMPANHIA SIDERURGICA NACIONAL - CSN
发明人
CUNHA JACI DA;SANTOS DEJAIR VIANA DOS;ISAQUE JOSE GOMES
分类号
B21B39/00;(IPC1-7):B21B39/00
主分类号
B21B39/00
代理机构
代理人
主权项
地址
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