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发明名称
CLUTCH DEVICE FOR HAMMER DRILLING
摘要
申请公布号
KR200153942(Y1)
申请公布日期
1999.08.02
申请号
KR19970011926U
申请日期
1997.05.26
申请人
KEYANG ELECTRIC MACHINERY CO., LTD
发明人
BAEK, BOK-HYUN;YOO, JIN-HO
分类号
E21B10/62;(IPC1-7):E21B10/62
主分类号
E21B10/62
代理机构
代理人
主权项
地址
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