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发明名称
摘要
申请公布号
DD124007(A1)
申请公布日期
1977.02.02
申请号
DD19750190039
申请日期
1975.12.11
申请人
发明人
分类号
B01D53/22;(IPC1-7):B01D53/22;C07C63/22
主分类号
B01D53/22
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代理人
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