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发明名称
Procédé de traitement des minerais par écumage
摘要
申请公布号
FR704967(A)
申请公布日期
1931.05.29
申请号
FRD704967
申请日期
1930.01.25
申请人
发明人
BENETT LEON-CASIMIR-VICTOR
分类号
B03D1/001
主分类号
B03D1/001
代理机构
代理人
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地址
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