Issued Patents 1989
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4887776 | Film cassette | Bradley S. Bush | 1989-12-19 |
| 4887113 | Film cassette and method of assembling the same | — | 1989-12-12 |
| 4887112 | Film cassette | Jeffrey C. Robertson, Mark D. Fraser | 1989-12-12 |
| 4883236 | Film cassette | Patricia D. Fairman | 1989-11-28 |
| 4883235 | Film cassette | — | 1989-11-28 |
| 4813063 | Photographic cassette | Even P. Carmichael, Roger G. Covington, Bruce R. Muller | 1989-03-14 |
| 4807271 | Film sheet presence indicating mechanism for a photographic cassette | Roger G. Covington, Bruce R. Muller, Evan P. Carmichael | 1989-02-21 |