Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D811471 | Drum pad | — | 2018-02-27 |
| 8403276 | Vertical support system for musical instruments | Maurice Stephen Blimkie | 2013-03-26 |
| 5570559 | Fall arrestor | — | 1996-11-05 |
| 4961490 | Transfer mechanism with jam detector | Frank D. Risko | 1990-10-09 |
| 4548244 | Electronic program control | Frank D. Risko | 1985-10-22 |