Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5701171 | Apparatus for constraining moving photographic film | John A. Schempp, Jr. | 1997-12-23 |
| 5677540 | Optical notch detector head for photographic film | John A. Schempp, Jr., Lester John Sadowski | 1997-10-14 |
| 5644120 | Apparatus for reading optical code on moving photographic film | John A. Schempp, Jr. | 1997-07-01 |