发明名称 DUST VACUUMING ABRASIVE TOOL
摘要 <p>The present disclosure is directed to a dust vacuuming abrasive tool comprising an abrasive sheet material having an abrasive surface, a back surface and 20 or more perforations; and a backup pad having a support surface, a back surface and 20 or more perforations, or a plurality of perforations and also having, in the supporting surface. The configuration of the abrasive sheet and back-up pad eliminate the need to align perforations in the abrasive sheet and back-up pad.</p>
申请公布号 WO2008042775(A1) 申请公布日期 2008.04.10
申请号 WO2007US79893 申请日期 2007.09.28
申请人 3M INNOVATIVE PROPERTIES COMPANY 发明人 TAKINAMI, SATORU;OKA, HITOSHI
分类号 B24B23/02;B24D11/02;B24D9/08;B24B55/10 主分类号 B24B23/02
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