Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5105586 | Abrading tool and method of manufacture | John R. Mason | 1992-04-21 |
| D322741 | Knife sharpener | — | 1991-12-31 |
| 4751795 | Knife sharpener | — | 1988-06-21 |
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5105586 | Abrading tool and method of manufacture | John R. Mason | 1992-04-21 |
| D322741 | Knife sharpener | — | 1991-12-31 |
| 4751795 | Knife sharpener | — | 1988-06-21 |