Issued Patents 2021
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11110657 | Switching device for double nozzles of 3D printer | Jianzhe Li, Hua Feng, Wangping Long | 2021-09-07 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11110657 | Switching device for double nozzles of 3D printer | Jianzhe Li, Hua Feng, Wangping Long | 2021-09-07 |