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经营范围
发明名称
PROCEDIMIENTO Y DISPOSITIVO PARA LA PRODUCCION DE GRAFITO ESFEROIDAL.
摘要
申请公布号
ES453240(A1)
申请公布日期
1977.11.01
申请号
ES19400004532
申请日期
1976.11.11
申请人
PATRONATO DE INVESTIGACION CIENTIFICA Y TECNICA
发明人
分类号
B22D;(IPC1-7):22D/
主分类号
B22D
代理机构
代理人
主权项
地址
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