Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7183473 | Ergonomic stringed instrument and ergonomic roundback guitar | Frank I. Untermyer, Robert D. Wallace, David McDonald, Julian Groeli | 2007-02-27 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7183473 | Ergonomic stringed instrument and ergonomic roundback guitar | Frank I. Untermyer, Robert D. Wallace, David McDonald, Julian Groeli | 2007-02-27 |