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摘要
申请公布号
JPS5278971(U)
申请公布日期
1977.06.13
申请号
JP19750167872U
申请日期
1975.12.10
申请人
发明人
分类号
C02F1/40;E02B15/04;E02B15/10;(IPC1-7):E02B15/04
主分类号
C02F1/40
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