Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4852141 | Portable X-ray collimator and scatter shield | — | 1989-07-25 |
| 4848890 | Visor with point sun blocking | — | 1989-07-18 |
| 4840283 | Double shell thickener | M. James Lillywhite | 1989-06-20 |