Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE33515 | Gravity feed display device | Robert W. Lackey | 1991-01-08 |
| 4690287 | Gravity feed display device | Robert W. Lackey | 1987-09-01 |
| 4593823 | Gravity feed display device | Robert W. Lackey | 1986-06-10 |