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经营范围
发明名称
Hydraulinen uppoporakone
摘要
申请公布号
FI90582(C)
申请公布日期
1994.02.25
申请号
FI19900000206
申请日期
1990.01.12
申请人
G-DRILL AB,
发明人
GUSTAFSSON,PER
分类号
E21B4/14;(IPC1-7):E21B4/14
主分类号
E21B4/14
代理机构
代理人
主权项
地址
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