Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10823564 | Automatic leveling laser marking indication device | Zhiwei Zhuang | 2020-11-03 |
| D867172 | Thermodetector | — | 2019-11-19 |
| 9885570 | Electronic circuit for acousto-optoelectronic angle indication and level gauge thereof | — | 2018-02-06 |
| 9709374 | Pointer type angle measuring device | — | 2017-07-18 |
| 9644951 | Pointer-type angle measuring device with wireless power supply for lighting | — | 2017-05-09 |
| D559135 | Laser level ruler | — | 2008-01-08 |