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发明名称
Devices for anchoring tubing in oil wells
摘要
申请公布号
IT1236721(B)
申请公布日期
1993.03.26
申请号
IT19890044818
申请日期
1989.10.10
申请人
MAESTRAMI MARINO
发明人
MAESTRAMI MARINO
分类号
E21B;(IPC1-7):E21B
主分类号
E21B
代理机构
代理人
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地址
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