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发明名称
Transfer arm positioning system
摘要
申请公布号
GB2177143(A)
申请公布日期
1987.01.14
申请号
GB19860012784
申请日期
1986.05.27
申请人
* W-N APACHE CORPORATION
发明人
HAROLD L * ADAIR
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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