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经营范围
发明名称
Perfectionnements au traitement du triacétate de cellulose
摘要
申请公布号
FR785452(A)
申请公布日期
1935.08.10
申请号
FRD785452
申请日期
1935.02.09
申请人
发明人
BERL ERNST
分类号
C08B3/22
主分类号
C08B3/22
代理机构
代理人
主权项
地址
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