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发明名称
WELL DRILLING MACHINE OF LOCATION CORRECTING DEVICE
摘要
申请公布号
KR890002277(Y1)
申请公布日期
1989.04.15
申请号
KR19840003166U
申请日期
1984.04.09
申请人
HWANG, SON-JOO
发明人
HWANG, SON-JOO
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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