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经营范围
发明名称
Séparation de minerais par gravité
摘要
申请公布号
FR860493(A)
申请公布日期
1941.01.16
申请号
FRD860493
申请日期
1939.03.30
申请人
发明人
WADE HENRY HOPKINS
分类号
B03B13/00
主分类号
B03B13/00
代理机构
代理人
主权项
地址
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