Tsang; Frederick L. T.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Tsang; Frederick L. T..The latest application filed is for "electronic educational game housing".
- Tsang; Frederick L. T. - Fan Ling HK
- Tsang; Frederick L. T. - Sai Ying Pun HK
| Patent | Date |
|---|---|
| Electronic educational game housing Grant D407,748 - Tsang , et al. April 6, 1 | 1999-04-06 |
| Housing for an electronic instructional game apparatus Grant D360,224 - Chow , et al. July 11, 1 | 1995-07-11 |
| Walker Grant D353,566 - Chow , et al. December 20, 1 | 1994-12-20 |
| Housing for an electronic instructional game apparatus Grant D350,373 - Chow , et al. September 6, 1 | 1994-09-06 |
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