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发明名称
摘要
申请公布号
JPS5257479(U)
申请公布日期
1977.04.26
申请号
JP19750145642U
申请日期
1975.10.24
申请人
发明人
分类号
E02B15/00;B08B11/00;C02F1/40;(IPC1-7):B08B11/00
主分类号
E02B15/00
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代理人
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