Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5742040 | Optical code reader head for photographic film | Carl W. Roy, John A. Schempp, Jr. | 1998-04-21 |
| 5677540 | Optical notch detector head for photographic film | Carl W. Roy, John A. Schempp, Jr. | 1997-10-14 |