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发明名称
Improvements in the colouration of polyamide fibres
摘要
申请公布号
GB632083(A)
申请公布日期
1949.11.16
申请号
GB19460036410
申请日期
1947.02.10
申请人
ALAN BUTTERWORTH;PERCY FIELD CROSLAND
发明人
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主分类号
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