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发明名称
Chemical process
摘要
申请公布号
US2231887(A)
申请公布日期
1941.02.18
申请号
US19390259678
申请日期
1939.03.03
申请人
E. I. DU PONT DE NEMOURS & COMPANY
发明人
CONAWAY ROLLIN FRANCIS
分类号
C07D207/40;C07D207/404;C07D209/48
主分类号
C07D207/40
代理机构
代理人
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地址
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