Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9570053 | Adjustable cajón instrument | Andrzej Krol, Victor Filonovich, Sergio G. Bonsignore | 2017-02-14 |
| 9087497 | Adjustable cajón instrument | Andrzej Krol, Victor Filonovich, Sergio G. Bonsignore | 2015-07-21 |