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发明名称
Automatic leveling system for blasthole drills
摘要
申请公布号
AU692825(B2)
申请公布日期
1998.06.18
申请号
AU19950014789
申请日期
1995.03.09
申请人
HARNISCHFEGER CORPORATION
发明人
TIMOTHY R. KERRIGAN
分类号
E21B;G05D3/12;(IPC1-7):G05D3/12
主分类号
E21B
代理机构
代理人
主权项
地址
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