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发明名称
摘要
申请公布号
FR2338737(B1)
申请公布日期
1980.12.26
申请号
FR19770001524
申请日期
1977.01.20
申请人
DU PONT DE NEMOURS AND CY
发明人
分类号
B01D53/68;B01D53/77;(IPC1-7):B01D53/14
主分类号
B01D53/68
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