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经营范围
发明名称
Perfectionnements ayant trait à la coloration des dérivés cellulosiques
摘要
申请公布号
FR682202(A)
申请公布日期
1930.05.24
申请号
FRD682202
申请日期
1929.09.23
申请人
发明人
DREYFUS HENRY
分类号
C09B39/00
主分类号
C09B39/00
代理机构
代理人
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