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发明名称
Azo dyes, and method for their preparation
摘要
申请公布号
US1962226(A)
申请公布日期
1934.06.12
申请号
US19320616367
申请日期
1932.06.09
申请人
E. I. DU PONT DE NEMOURS & COMPANY
发明人
WOODWARD HAROLD EDWARD
分类号
主分类号
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