Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D643163 | Jewelry cleaner | Daniel L. Kessler | 2011-08-09 |
| D634271 | Charging stand for instruments for testing the authenticity of diamonds and moissanite | Daniel L. Kessler | 2011-03-15 |