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发明名称
摘要
申请公布号
JPH0580581(U)
申请公布日期
1993.11.02
申请号
JP19920029874U
申请日期
1992.04.09
申请人
发明人
分类号
C02F1/40;B01D21/24;C02F3/12;(IPC1-7):C02F1/40
主分类号
C02F1/40
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代理人
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