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经营范围
发明名称
Flotation machine
摘要
申请公布号
US2806681(A)
申请公布日期
1957.09.17
申请号
US19550479395
申请日期
1955.01.03
申请人
发明人
FAHRENWALD ARTHUR W.
分类号
B03D1/20
主分类号
B03D1/20
代理机构
代理人
主权项
地址
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