Number | Name | Date | Kind |
---|---|---|---|
3576810 | Duncan et al. | Apr 1971 | |
4921863 | Sugimoto et al. | May 1990 | |
5202346 | Butera et al. | Apr 1993 | |
5231105 | Shoji et al. | Jul 1993 | |
5384319 | Ferrini | Jan 1995 |
Number | Date | Country |
---|---|---|
235752 | Sep 1987 | EPX |
9500497 | Jan 1995 | WOX |
9606609 | Mar 1996 | WOX |
9610035 | Apr 1996 | WOX |
Entry |
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Chemical Abstracts No. 100:203138 & Registry No. 90126-04-8 of Shiozawa et. al., Chem. Pharm. Bull. (1984), vol. 32, No. 2, pp. 553-563. |