- 专利标题: HORIZONTAL DIRECTIONAL DRILLING SYSTEM WITH OPERATOR LIFT
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申请号: EP20728873.9申请日: 2020-05-12
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公开(公告)号: EP3953556B1公开(公告)日: 2023-11-29
- 发明人: TOOLEY, James Brian , LANGNER, Jeffrey Dale
- 专利权人: Vermeer Manufacturing Company
- 当前专利权人: Vermeer Manufacturing Company
- 当前专利权人地址: 1210 Vermeer Road East Pella, IA 50219 US
- 代理机构: Hoffmann Eitle
- 优先权: US201962846827 P 20190513
- 国际公布: WO2020231978 20201119
- 主分类号: E21B7/02
- IPC分类号: E21B7/02 ; E21B7/04
公开/授权文献
- EP3953556A1 HORIZONTAL DIRECTIONAL DRILLING SYSTEM WITH OPERATOR LIFT 公开/授权日:2022-02-16
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