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发明名称
Perfectionnements à la fabrication de filaments, fils, filés, rubans, etc. à l'aide d'esters et d'éthers de cellulose
摘要
申请公布号
FR690432(A)
申请公布日期
1930.09.19
申请号
FRD690432
申请日期
1930.02.22
申请人
发明人
DREYFUS HENRY
分类号
D01F2/30
主分类号
D01F2/30
代理机构
代理人
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地址
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