Number | Name | Date | Kind |
---|---|---|---|
D346979 | Stalcup et al. | May 1994 | |
4179810 | Kirsch | Dec 1979 | |
4703751 | Pohl | Nov 1987 | |
4721104 | Kaufman et al. | Jan 1988 | |
5109401 | Lester et al. | Dec 1992 | |
5176684 | Ferrante et al. | Jan 1993 | |
5250050 | Poggic et al. | Oct 1993 | |
5263493 | Caspari et al. | Nov 1993 |