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经营范围
发明名称
Perfectionnements au traitement des dérivés cellulosiques
摘要
申请公布号
FR39238(E)
申请公布日期
1931.10.21
申请号
FRD39238
申请日期
1930.09.26
申请人
发明人
DREYFUS HENRY
分类号
D01D5/04
主分类号
D01D5/04
代理机构
代理人
主权项
地址
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