Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4583734 | Racket having a unique handle structure | Wolfgang Schuler | 1986-04-22 |
| 4565371 | Racket having a handle with different striking characteristics on opposite sides | Wolfgang Schuler | 1986-01-21 |