Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5697519 | Split door for vending machine | Francis A. Wittern, Jr., Gary L. Walke | 1997-12-16 |
| 5533645 | Split door for vending machine | Francis A. Wittern, Jr., Gary L. Walke | 1996-07-09 |