Number | Name | Date | Kind |
---|---|---|---|
D284734 | Kurylo et al. | Jul 1986 | |
D287929 | Hagg et al. | Jan 1987 | |
4041740 | Villazon | Aug 1977 | |
4283933 | Wiener | Aug 1981 | |
4353240 | Undin et al. | Oct 1982 | |
4381661 | Wiener et al. | May 1983 | |
4630462 | Wiener et al. | Dec 1986 | |
4637242 | Undin et al. | Jan 1987 | |
4719789 | Wiebe et al. | Jan 1988 | |
4980962 | Wiebe | Jan 1991 |