| Number | Name | Date | Kind |
|---|---|---|---|
| D305717 | Soren et al. | Jan 1990 | |
| D350328 | Alexandres et al. | Sep 1994 | |
| D352269 | Alexandres et al. | Nov 1994 | |
| D353361 | Nagele et al. | Dec 1994 | |
| D358128 | Berry et al. | May 1995 | |
| D359267 | Berry et al. | May 1995 | |
| 5180644 | Bresin et al. | Jan 1993 | |
| 5242767 | Roback et al. | Sep 1993 | |
| 5308716 | Shababy et al. | May 1994 | |
| 5314763 | Aksoy et al. | May 1994 | |
| 5432017 | Hassemer et al. | Jul 1995 |