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经营范围
发明名称
A drilling apparatus
摘要
申请公布号
AUPN832496(D0)
申请公布日期
1996.03.21
申请号
AU1996PN08324
申请日期
1996.02.27
申请人
MOLLOY, A. J.
发明人
分类号
E21B4/16;E21B10/08;E21B10/16;E21B10/28
主分类号
E21B4/16
代理机构
代理人
主权项
地址
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