Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4697919 | Film developing system for microimage recording apparatus | — | 1987-10-06 |
| 4634071 | Light tight film cartridge with floating light seal | — | 1987-01-06 |
| 4241992 | Recorded image detection system for updatable microfilm | John R. Flint | 1980-12-30 |