| Number | Name | Date | Kind |
|---|---|---|---|
| D262720 | Dweck | Jan 1982 | |
| D309161 | Leung | Jul 1990 | |
| D347246 | Wen | May 1994 | |
| D368282 | Lin | Mar 1996 | |
| D380501 | Osterhout et al. | Jul 1997 | |
| D382914 | Ho et al. | Aug 1997 | |
| 5184830 | Okada et al. | Feb 1993 | |
| 5217295 | Tortola et al. | Jun 1993 | |
| 5232223 | Osterhout et al. | Aug 1993 |
| Entry |
|---|
| HongKong Enterprise, p. 133, Oct. 1994. |
| HongKong Enterprise, p. 461, Oct. 1994. |