Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4928564 | Apparatus and method for stabilizing a tremolo on a musical instrument such as a guitar | David Joshua Borisoff | 1990-05-29 |
| 4643069 | String tuner attachment | David Joshua Borisoff | 1987-02-17 |