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经营范围
发明名称
DOWN-THE-HOLE DRILL HAMMER.
摘要
申请公布号
EP1463868(B1)
申请公布日期
2007.08.15
申请号
EP20020786339
申请日期
2002.12.10
申请人
ATLAS COPCO SECOROC AB
发明人
STJERNSTROEM, KARL, AXEL;GREIJER, THOMAS
分类号
E21B4/06;E21B4/20;E21B17/046
主分类号
E21B4/06
代理机构
代理人
主权项
地址
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