Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D317594 | Keyboard | Michael M. Richardson | 1991-06-18 |
| D317322 | Thermal printer | Michael M. Richardson | 1991-06-04 |
| D311416 | Thermal printer tape ribbon cartridge | Michael M. Richardson | 1990-10-16 |