| Number | Name | Date | Kind |
|---|---|---|---|
| D272087 | SMith | Jan 1984 | |
| D307398 | Umemoto et al. | Apr 1990 | |
| D319100 | Umemoto et al. | Aug 1991 | |
| D330770 | Rodomista et al. | Nov 1992 | |
| D334428 | Horton et al. | Mar 1993 | |
| 3499733 | Abbott et al. | Mar 1970 | |
| 4965049 | Lillig et al. | Oct 1990 | |
| 5270210 | Weyrauch et al. | Dec 1993 |