Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4883957 | Mass spectrometer including cooling for the ion collection amplifiers | Nigel Kinge, David Mills | 1989-11-28 |
| 4853539 | Glow discharge mass spectrometer | David Hall, Edward F. H. Hall | 1989-08-01 |