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发明名称
BIT COVER FOR HAMMER DRILL
摘要
申请公布号
KR200175008(Y1)
申请公布日期
2000.03.15
申请号
KR19990014282U
申请日期
1999.07.19
申请人
KIM, JUNG O
发明人
KIM, JUNG O
分类号
E21B3/00;(IPC1-7):E21B3/00
主分类号
E21B3/00
代理机构
代理人
主权项
地址
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