Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9928812 | Cantilevered guitar hand placement guide and support bar | Jerrilyn J. Roblin-Porter | 2018-03-27 |
| 9576562 | Guitar hand placement guide and support bar | Jerrilyn J. Roblin-Porter | 2017-02-21 |