Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5335089 | Electronic high-fidelity screenless conversion system and method using a separable filter | Zhenhua Xie | 1994-08-02 |
| 5331430 | Electronic high-fidelity screenless conversion system | Zhenhua Xie | 1994-07-19 |