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发明名称
Perfectionnements à la fabrication de matières artificîelles
摘要
申请公布号
FR684144(A)
申请公布日期
1930.06.21
申请号
FRD684144
申请日期
1929.10.29
申请人
发明人
DREYFUS CAMILLE
分类号
D01F2/28
主分类号
D01F2/28
代理机构
代理人
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