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发明名称
摘要
申请公布号
JP2577207(Y2)
申请公布日期
1998.07.23
申请号
JP19910055356U
申请日期
1991.04.15
申请人
发明人
分类号
C02F1/40;F16K5/08;(IPC1-7):C02F1/40
主分类号
C02F1/40
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