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发明名称
Vat dyestuffs of the dibenzanthrone series and process of preparing the same
摘要
申请公布号
US1947047(A)
申请公布日期
1934.02.13
申请号
US19290408939
申请日期
1929.11.21
申请人
E. I. DU PONT DE NEMOURS & COMPANY
发明人
HOWELL EDWARD T.
分类号
C09B3/36
主分类号
C09B3/36
代理机构
代理人
主权项
地址
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