Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4732383 | Shock and vibration absorber for racquets and method for its use | Harry M. Ferrari, Raymond P. Harrington | 1988-03-22 |
| 4720105 | Weight and balance adjusting assembly for racquets | Harry M. Ferrari, Raymond P. Harrington | 1988-01-19 |