Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4677777 | Price setting and display system for multiple unit merchandising machine | David A. Hoffman, Ross Ouwinga | 1987-07-07 |
| 4667802 | Video jukebox | William C. Brotz | 1987-05-26 |
| 4537336 | Control system for cold drink merchandising machine | Michael J. St. Clair | 1985-08-27 |
| 4256009 | Disco lamp controller for coin-operated phonograph | Paul E. Kitchka | 1981-03-17 |
| 4223210 | Electronic vending machine selection counter | — | 1980-09-16 |