Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4944574 | Stand magnifier and lens | Robert J. Roote, Ian K. Pasco, Ian J. Smithers | 1990-07-31 |
| 4836659 | Lens | Robert J. Roote, Ian K. Pasco, Ian J. Smithers | 1989-06-06 |
| 4613984 | Quick film release x-ray cassette mechanism | Ronald T. Fisher, David P. Spain | 1986-09-23 |