Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9633629 | Piano or grand piano with strings and a sound bridge with reduced mass and improved tonal quality | Hannes Schimmel-Vogel | 2017-04-25 |
| 7786374 | Pianoforte instrument exhibiting an additional delivery of energy into the sound board, and method for influencing the sound of a pianoforte instrument | Roberto Valli, Luigi Lamacchia | 2010-08-31 |
| 4198893 | Damper for pianos | — | 1980-04-22 |