Issued Patents 1994
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5325577 | Method for automatically opening roll cassette by suctioning | Donald O. Bigelow, John B. Chemelli | 1994-07-05 |
| 5310049 | Film or paper cassette | Donald O. Bigelow, John B. Chemelli | 1994-05-10 |
| 5283945 | Cassette opening system | Donald O. Bigelow, John B. Chemelli | 1994-02-08 |