Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D937651 | Storage rack for screwdriver bit set | Ningning Li, Lidan Liu | 2021-12-07 |
| D930452 | Screwdriver handle | Xiaodong Liu, Ningning Li | 2021-09-14 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D937651 | Storage rack for screwdriver bit set | Ningning Li, Lidan Liu | 2021-12-07 |
| D930452 | Screwdriver handle | Xiaodong Liu, Ningning Li | 2021-09-14 |