Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7610689 | Level having rotatable digital display unit | — | 2009-11-03 |
| 7412774 | Laser level with selectable constant or pulsed beam output | Jianhong Lu, Yifei Xu | 2008-08-19 |
| D567121 | Multiline device | Gongxin Peng | 2008-04-22 |