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发明名称
Rotation device for a boom of a mining or constructions work rig, rig and boom
摘要
申请公布号
AU2006221164(B2)
申请公布日期
2011.04.28
申请号
AU20060221164
申请日期
2006.02.17
申请人
ATLAS COPCO ROCK DRILLS AB
发明人
FREDRIK SAF
分类号
E21B7/02
主分类号
E21B7/02
代理机构
代理人
主权项
地址
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