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发明名称
A Re-Sharpening Apparatus of Drill Bit and Re-Sharpening Method Using Thereof
摘要
申请公布号
KR101138847(B1)
申请公布日期
2012.05.14
申请号
KR20100020951
申请日期
2010.03.09
申请人
发明人
分类号
B24B3/24;B24B3/28;B24B51/00
主分类号
B24B3/24
代理机构
代理人
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