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经营范围
发明名称
Tubular handling system
摘要
申请公布号
AU4258193(A)
申请公布日期
1993.11.29
申请号
AU19930042581
申请日期
1993.04.29
申请人
THE DRECO GROUP OF COMPANIES LTD.
发明人
RONALD S SOROKAN
分类号
E21B19/15;(IPC1-7):E21B19/15
主分类号
E21B19/15
代理机构
代理人
主权项
地址
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