Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5510862 | Collapsible large screen audiovisual display system | Phillip L. Lieberman | 1996-04-23 |
| 5434631 | Collapsible large screen audiovisual display system | Phillip L. Lieberman | 1995-07-18 |