发明名称 Hole saw for use on drill chuck of electric hand drill to produce breaks on gypsum plaster boards, has centering facility which is connected to manual control device
摘要 <p>The hole saw (10) has a centering facility (18) that is connected to a manual control device (12).</p>
申请公布号 DE10305696(A1) 申请公布日期 2004.08.26
申请号 DE2003105696 申请日期 2003.02.12
申请人 GRUBER, BRUNO 发明人 GRUBER, BRUNO
分类号 B23B45/06;B23B51/04;(IPC1-7):B23B51/05 主分类号 B23B45/06
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