Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5222998 | Device for facilitating application of variable tension to sports racquet stringing bed | Harry M. Ferrari, Stephen M. Ferlan | 1993-06-29 |
| 4732383 | Shock and vibration absorber for racquets and method for its use | Harry M. Ferrari, Harry W. Ingram | 1988-03-22 |
| 4720105 | Weight and balance adjusting assembly for racquets | Harry M. Ferrari, Harry W. Ingram | 1988-01-19 |