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经营范围
发明名称
DRILLING MACHINE
摘要
申请公布号
KR920006481(Y1)
申请公布日期
1992.09.18
申请号
KR19900011105U
申请日期
1990.07.27
申请人
HYUNDAI CONSTRUCTION EQUIP. IND. CO., LTD.
发明人
KIM, YONG - BONG
分类号
E21B7/00;(IPC1-7):E21B7/00
主分类号
E21B7/00
代理机构
代理人
主权项
地址
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