Attachments for well drilling machines in the nature of overshots
- 条目编号
- 007-4659
- 所属类别
- 第7类 机器
- 状态
- 有效（A）
- 类型
- 商品
- 生效日期
- 09/21/2023
- 尼斯版本
- 12-2023
- TM5 通用条目
- 否
官方备注
Overshots are well drilling machine tools used to grip and retrieve objects stuck within a wellbore by lowering the tool over the object.
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