Issued Patents 2020
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10626909 | Countersinking screw capable of easily drilling holes and dregs removing | — | 2020-04-21 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10626909 | Countersinking screw capable of easily drilling holes and dregs removing | — | 2020-04-21 |