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发明名称
APERFEICOAMENTOS EM E RELATIVOS A FERRAMENTAS PERFURANTES ROTATIVAS PARA FORMACAO DE FUROS,CADA UM CIRCUNDADO POR UMA PROJECAO,EM CHAPA METALICA OU NA PAREDE DE TUBO METALIC
摘要
申请公布号
BR7800522(A)
申请公布日期
1978.09.12
申请号
BR19780000522
申请日期
1978.01.27
申请人
GEFFEN TECHN MANDELS EN ADVIESBUREAU BV
发明人
GEFFEN J
分类号
B23B51/00;B21C37/29;B21D28/14;B21D28/34;B23B51/08;B26F1/02;B26F1/16;B26F1/26;(IPC1-7):B21D28/34
主分类号
B23B51/00
代理机构
代理人
主权项
地址
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