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发明名称
摘要
申请公布号
JPS5542878(Y2)
申请公布日期
1980.10.07
申请号
JP19750055341U
申请日期
1975.04.23
申请人
发明人
分类号
C02F1/00;C02F3/00;C02F3/20;(IPC1-7):C02F3/00
主分类号
C02F1/00
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代理人
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