Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4271620 | Animated three-dimensional inflatable displays | Robert K. Vicino | 1981-06-09 |
| 4249740 | Board and apparatus for simultaneously playing chess games | Roland J. Cheney | 1981-02-10 |