Number | Date | Country | Kind |
---|---|---|---|
4-217044 | Aug 1992 | JPX | |
5-192586 | Aug 1993 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
5124151 | Viegas et al. | Jun 1992 | |
5143731 | Viegas et al. | Sep 1992 | |
5161141 | Henry | Jun 1992 | |
5219564 | Zalipsky et al. | Jun 1993 |
Number | Date | Country |
---|---|---|
397307 | Nov 1990 | EPX |
Entry |
---|
The Merck Index, Eleventh Ed., 1989, pp. 540-541 and 786-787. |