Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4886732 | 35 mm self-developing transparency film assemblage | Alfred E. Corrigan | 1989-12-12 |
| 4884088 | Kit for converting 35 mm camera for use with self-developing transparency film | — | 1989-11-28 |
| 4855770 | Vehicle identification camera | Frederick Slavitter | 1989-08-08 |
| H654 | Positive vignetting accessory | Edward J. Doyle | 1989-07-04 |