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经营范围
发明名称
Auger mining machine
摘要
申请公布号
AU670312(B2)
申请公布日期
1996.07.11
申请号
AU19930046798
申请日期
1993.07.15
申请人
SALEM TOOL, INC.
发明人
GARY R WURSTER
分类号
E21C25/58;(IPC1-7):E21C25/58
主分类号
E21C25/58
代理机构
代理人
主权项
地址
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