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经营范围
发明名称
DRILLING RIG
摘要
申请公布号
AU2949177(A)
申请公布日期
1979.05.24
申请号
AU19770029491
申请日期
1976.10.07
申请人
COMMONWEALTH SCIENTIFIC & INDUSTRIAL RESEARCH ORGANISATION
发明人
LINDSAY ERNEST DERRIMAN;KENNETH JOHN HOWELLS
分类号
E21B3/02;E21B7/02
主分类号
E21B3/02
代理机构
代理人
主权项
地址
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