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发明名称
Blue sulphur dyes and methods of manufacturing the same
摘要
申请公布号
US2212821(A)
申请公布日期
1940.08.27
申请号
US19380216476
申请日期
1938.06.29
申请人
E. I. DU PONT DE NEMOURS & COMPANY
发明人
BIGELOW NEWELL M.;COLE JOHN ELTON
分类号
C09B49/10
主分类号
C09B49/10
代理机构
代理人
主权项
地址
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