Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8953104 | Automatic shading electric welding lens comprising a liquid crystal plate and a time-delay switch | Xiangdong Ge | 2015-02-10 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8953104 | Automatic shading electric welding lens comprising a liquid crystal plate and a time-delay switch | Xiangdong Ge | 2015-02-10 |