Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7977555 | Method of modifying the frequency response of a wooden article | James L. Hall | 2011-07-12 |
| 7932457 | Accelerated aging process for acoustic stringed instruments | James L. Hall | 2011-04-26 |