Number | Name | Date | Kind |
---|---|---|---|
D298040 | Legler et al. | Oct 1988 | |
D377654 | Jedlicka et al. | Jan 1997 | |
D387782 | Letendre | Dec 1997 | |
4174100 | Estess | Nov 1979 | |
4206910 | Biesemeyer | Jun 1980 | |
4322066 | Disney | Mar 1982 | |
4521006 | Waters | Jun 1985 | |
4558618 | Bachmann et al. | Dec 1985 | |
4593590 | Gray | Jun 1986 | |
4600184 | Ashworth | Jul 1986 | |
4658687 | Haas et al. | Apr 1987 | |
4846036 | Metzger, Jr. et al. | Jul 1989 | |
4987813 | Viazanko | Jan 1991 | |
5018562 | Adams | May 1991 | |
5078373 | Miller | Jan 1992 | |
5181446 | Theising | Jan 1993 |