Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4858099 | Resonant inverter | Thomas A. McMillan, Carl A. Brooks | 1989-08-15 |
| 4810658 | Photometric instruments, their use in methods of optical analysis, and ancillary devices therefor | Ian A. Shanks | 1989-03-07 |