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经营范围
发明名称
Purification of crude aromatic hydrocarbons
摘要
申请公布号
GB299419(A)
申请公布日期
1930.04.08
申请号
GB19280028873
申请日期
1928.10.08
申请人
THE SELDEN COMPANY
发明人
分类号
C07C7/00;C07C7/148
主分类号
C07C7/00
代理机构
代理人
主权项
地址
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