Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6020549 | Apparatus and methods for modifying piano keyboards | Hannah Reimann | 2000-02-01 |
| 5511454 | Piano escapement action | Marvin Scott Jones, Dirk Dickten, Gary M. Green, Paul D. Oleksy, Gregory R. Sims +1 more | 1996-04-30 |