Number | Name | Date | Kind |
---|---|---|---|
3570050 | Draper et al. | Mar 1991 | |
3942222 | Strandine et al. | Mar 1976 | |
4019223 | Baker | Apr 1977 | |
4503587 | Martin | Mar 1985 | |
4536919 | Cashwell et al. | Aug 1985 | |
4557017 | Gasbarro | Dec 1985 | |
4564976 | Beech et al. | Jan 1986 | |
4567624 | van Mil | Feb 1986 | |
4586215 | Meyn | May 1986 | |
4688297 | Bartels | Aug 1987 | |
4815168 | van den Nieuwelaar et al. | Mar 1989 | |
4827570 | Scheier et al. | May 1980 | |
4849245 | Galbraith | Jul 1989 | |
4873746 | Scheier et al. | Oct 1989 |