Issued Patents 2024
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12139366 | Rotary shaft of three-dimensional printing filament spool holder, three-dimensional printing filament spool holder, and three-dimensional printer | Ran LIAO, Zezheng ZHANG | 2024-11-12 |