Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5642882 | Butt cap for sports racquet | — | 1997-07-01 |
| 5639086 | Universal stringing machine for sports racquets | Joseph J. Wolverton | 1997-06-17 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5642882 | Butt cap for sports racquet | — | 1997-07-01 |
| 5639086 | Universal stringing machine for sports racquets | Joseph J. Wolverton | 1997-06-17 |