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发明名称
PERFECCIONAMIENTOS EN EL PROCEDIMIENTO PARA LA FABRICACION DE PIEZAS TUBULARES TROQUELADAS.
摘要
申请公布号
ES336446(A1)
申请公布日期
1968.01.01
申请号
ES19460003364
申请日期
1967.02.04
申请人
RIPOLL NEBRA
发明人
分类号
B21D;(IPC1-7):B21D/
主分类号
B21D
代理机构
代理人
主权项
地址
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