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发明名称
DISPOSITIVO PARA EL CURVADO EN ESPIRAL DE BARRAS METALICAS.
摘要
申请公布号
ES139713(Y)
申请公布日期
1969.07.16
申请号
ES19680139713U
申请日期
1968.06.21
申请人
SOTO BARRIONUEVO
发明人
分类号
B21D
主分类号
B21D
代理机构
代理人
主权项
地址
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