Issued Patents 2017
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9631925 | Bubble level and apparatus containing a bubble level | Changlin Wang, Fanfeng Zu, Hong Zhu, Xiping Sheng | 2017-04-25 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9631925 | Bubble level and apparatus containing a bubble level | Changlin Wang, Fanfeng Zu, Hong Zhu, Xiping Sheng | 2017-04-25 |