Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D350373 | Housing for an electronic instructional game apparatus | Chi K. W. Chow, Frederick L. T. Tsang | 1994-09-06 |
| D348483 | Housing for an electronic instructional game apparatus | Chi K. W. Chow | 1994-07-05 |