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发明名称
Improvements in the colouration of cellulose derivatives
摘要
申请公布号
GB447267(A)
申请公布日期
1936.05.11
申请号
GB19340032277
申请日期
1934.11.09
申请人
HENRY DREYFUS
发明人
分类号
D06P1/44
主分类号
D06P1/44
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代理人
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