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发明名称
摘要
申请公布号
JPH038393(Y2)
申请公布日期
1991.02.28
申请号
JP19870173107U
申请日期
1987.11.12
申请人
发明人
分类号
C02F1/50;(IPC1-7):C02F1/50
主分类号
C02F1/50
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