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经营范围
发明名称
UN METODO PARA PREPARAR UN NUEVO REACTIVO UTILIZABLE EN LA CONCENTACION DE MINERALES SULFURUSOS POR FLOTACION ESPUMOSA
摘要
申请公布号
ES123706(A1)
申请公布日期
1931.10.16
申请号
ES19060001237
申请日期
1931.07.31
申请人
NORTH BROKEN HILL LIMITED
发明人
分类号
(IPC1-7):B01
主分类号
(IPC1-7):B01
代理机构
代理人
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