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摘要
申请公布号
DD127249(A5)
申请公布日期
1977.09.14
申请号
DD19760195640
申请日期
1976.11.05
申请人
发明人
分类号
B01D3/16;B01D3/22;B01D3/32;B01D19/00;C08F6/00;(IPC1-7):B01D3/22
主分类号
B01D3/16
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代理人
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