发明名称 CHARGEABLE DRILL ATTACHED WITH A MAGNET CAPABLE OF PREVENT THE SAFETY ACCIDENT AND MAXIMIZE THE WORK LOAD
摘要 PURPOSE: A chargeable drill attached with a magnet is provided to convenient by a screw nails or a boring bit is attached to the magnet. CONSTITUTION: A chargeable drill attached with a magnet comprises a magnet. The magnet is attached to a top and side parts or an extra space of the drill. A user does not carry with a screw spike or a subsidiary materials, these is attached to the magnet according to each size.
申请公布号 KR20110068373(A) 申请公布日期 2011.06.22
申请号 KR20090125294 申请日期 2009.12.14
申请人 BYUN, SANG WOO 发明人 BYUN, SANG WOO
分类号 B23B45/00;B23B47/00;B25B21/00;B25B23/00 主分类号 B23B45/00
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