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发明名称
摘要
申请公布号
JPH0426092(U)
申请公布日期
1992.03.02
申请号
JP19900065560U
申请日期
1990.06.21
申请人
发明人
分类号
C02F5/00;C02F1/46;C02F1/48;(IPC1-7):C02F1/46
主分类号
C02F5/00
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代理人
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