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经营范围
发明名称
A drilling machine
摘要
申请公布号
GB2257728(B)
申请公布日期
1995.05.24
申请号
GB19910015666
申请日期
1991.07.19
申请人
KEVIN * HAUNCH
发明人
KEVIN * HAUNCH
分类号
E21B7/02;(IPC1-7):E21B7/02
主分类号
E21B7/02
代理机构
代理人
主权项
地址
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