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经营范围
发明名称
Violanthrone derivatives
摘要
申请公布号
US2051120(A)
申请公布日期
1936.08.18
申请号
US19330673878
申请日期
1933.06.01
申请人
E. I. DU PONT DE NEMOURS & COMPANY
发明人
WUERTZ ALEXANDER JOHN;LYCAN WILLIAM HIRAM
分类号
C09B3/30
主分类号
C09B3/30
代理机构
代理人
主权项
地址
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