Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4853946 | Diagonostic service system for CT scanners | Richard J. Elliott, Walter A. Dupuis | 1989-08-01 |
| 4829551 | Biphase quadrature drive for an x-ray tube rotor | Walter A. Dupuis, William E. Szabo | 1989-05-09 |