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经营范围
发明名称
DRILLING HAMMER
摘要
申请公布号
KR930004982(Y1)
申请公布日期
1993.07.26
申请号
KR19910015535U
申请日期
1991.09.20
申请人
KUKJE DAIMOND IND. CO., LTD.
发明人
KIM, JONG - HWAN
分类号
E21B10/00;(IPC1-7):E21B10/00
主分类号
E21B10/00
代理机构
代理人
主权项
地址
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