Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4768151 | Electronic bingo card manager | Stephen E. Hutchison, Mark K. Virkus, Chester F. Jankowski | 1988-08-30 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4768151 | Electronic bingo card manager | Stephen E. Hutchison, Mark K. Virkus, Chester F. Jankowski | 1988-08-30 |