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发明名称
DISPOSITIVO DE PERFURACAO PARA A PRODUCAO DE FUROS COM RECORTE TRASEIRO
摘要
申请公布号
BR8202199(A)
申请公布日期
1983.03.29
申请号
BR19820002199
申请日期
1982.04.16
申请人
FISCHER ARTUR
发明人
FISCHER ARTUR
分类号
B28D1/14;B23B51/00;B25D17/00;B25F3/00;E21B7/28;(IPC1-7):B23B45/16
主分类号
B28D1/14
代理机构
代理人
主权项
地址
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