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发明名称
摘要
申请公布号	IT9020768(D0)	申请公布日期	1990.06.26
申请号	IT19900020768	申请日期	1990.06.26
申请人		发明人
分类号	B01D53/04;B01D53/46;B01D53/54;B01J20/02	主分类号	B01D53/04
代理机构		代理人
主权项
地址

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