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经营范围
发明名称
Paper deinking and dewaxing process
摘要
申请公布号
US2776209(A)
申请公布日期
1957.01.01
申请号
US19540424756
申请日期
1954.04.21
申请人
E. I. DU PONT DE NEMOURS AND COMPANY
发明人
O'FLYNN DENIS J.
分类号
D21C5/02
主分类号
D21C5/02
代理机构
代理人
主权项
地址
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