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发明名称
摘要
申请公布号
JP3778539(B2)
申请公布日期
2006.05.24
申请号
JP19980285806
申请日期
1998.10.08
申请人
发明人
分类号
E21F17/18;E21F1/00;F24F11/00
主分类号
E21F17/18
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