Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4849769 | System for ultrasonic cleaning of ink jet orifices | — | 1989-07-18 |
| 4833623 | Orifice plate inspection apparatus and method | Timothy H. V. Archer, Roger C. Burchett, Greg S. Wood | 1989-05-23 |