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经营范围
发明名称
Process for producing indigo
摘要
申请公布号
US2020387(A)
申请公布日期
1935.11.12
申请号
US19320642935
申请日期
1932.11.16
申请人
E. I. DU PONT DE NEMOURS & COMPANY
发明人
WALDRON WILLIAM ROBERT
分类号
C09B7/02
主分类号
C09B7/02
代理机构
代理人
主权项
地址
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