| Number | Name | Date | Kind |
|---|---|---|---|
| D261623 | Collister et al. | Nov 1981 | |
| D282644 | Collister | Feb 1986 | |
| D283107 | Collister | Mar 1986 | |
| D292277 | Collister et al. | Oct 1987 | |
| 3846027 | Hyman et al. | Nov 1974 | |
| 4266877 | Bodart | May 1981 | |
| 4373819 | Pallotta | Feb 1983 | |
| 4632559 | Brunsting | Dec 1986 |