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发明名称
Perfectionnement à la concentration des minerais de zinc par flottation
摘要
申请公布号
FR61640(E)
申请公布日期
1955.05.16
申请号
FRD61640
申请日期
1951.04.24
申请人
SOCIETE MINIERE ET METALLURGIQUE DE PENARROYA
发明人
REY;RAFFINOT
分类号
B03D1/01
主分类号
B03D1/01
代理机构
代理人
主权项
地址
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