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发明名称
Pipe handling device
摘要
申请公布号
US2652160(A)
申请公布日期
1953.09.15
申请号
US19480049940
申请日期
1948.09.18
申请人
THE TEXAS COMPANY
发明人
MULLE BERNIE P. LA
分类号
E21B19/14
主分类号
E21B19/14
代理机构
代理人
主权项
地址
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