Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5969804 | Photographic printer with mechanism for placing contact print slide at paper print gate | Carl W. Roy | 1999-10-19 |
| 5923411 | Photographic printer with mechanism for placing contact print slide at paper print gate | Carl W. Roy | 1999-07-13 |
| 5742040 | Optical code reader head for photographic film | Carl W. Roy, Lester John Sadowski | 1998-04-21 |
| 5701171 | Apparatus for constraining moving photographic film | Carl W. Roy | 1997-12-23 |
| 5677540 | Optical notch detector head for photographic film | Carl W. Roy, Lester John Sadowski | 1997-10-14 |
| 5644120 | Apparatus for reading optical code on moving photographic film | Carl W. Roy | 1997-07-01 |