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发明名称
摘要
申请公布号
JPS6260700(U)
申请公布日期
1987.04.15
申请号
JP19850152767U
申请日期
1985.10.05
申请人
发明人
分类号
E21F17/00;B05B13/04;B08B1/04;(IPC1-7):E21F17/00
主分类号
E21F17/00
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代理人
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