Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4831395 | Printer apparatus | Hieu T. Pham, Yee S. Ng, Kenneth D. Kieffer, Pin S. Tschang | 1989-05-16 |
| 4799071 | Dot printer with age compensation means | Yee S. Ng | 1989-01-17 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4831395 | Printer apparatus | Hieu T. Pham, Yee S. Ng, Kenneth D. Kieffer, Pin S. Tschang | 1989-05-16 |
| 4799071 | Dot printer with age compensation means | Yee S. Ng | 1989-01-17 |