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发明名称
Procédé de flottage sélectif de minerais de plomb et de zinc
摘要
申请公布号
FR786684(A)
申请公布日期
1935.09.07
申请号
FRD786684
申请日期
1935.03.05
申请人
发明人
BIERBRAUER ERNST
分类号
B03D1/012
主分类号
B03D1/012
代理机构
代理人
主权项
地址
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