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经营范围
发明名称
Certain 3, 4-dicyano, 6-oxy pyridones-2, corresponding iminopyrans and processes of preparation
摘要
申请公布号
US2925422(A)
申请公布日期
1960.02.16
申请号
US19570653532
申请日期
1957.04.18
申请人
E. I. DU PONT DE NEMOURS AND COMPANY
发明人
DICKINSON CLIFFORD L.
分类号
C07D211/90;C07D213/85;C07D215/54;C07D309/32
主分类号
C07D211/90
代理机构
代理人
主权项
地址
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