Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4317564 | Film tray assembly for photographic film cutter | Armer J. Willenbring, Warren J. Osby | 1982-03-02 |
| 4280381 | Film tray assembly for photographic film cutter | Armer J. Willenbring, Warren J. Osby | 1981-07-28 |