Number | Name | Date | Kind |
---|---|---|---|
D216099 | Ely | Nov 1969 | |
D312209 | Morrow et al. | Nov 1990 | |
3891331 | Avery | Jun 1975 | |
4173978 | Brown | Nov 1979 | |
4218155 | Weidner | Aug 1980 | |
4838851 | Shabo | Jun 1989 | |
4875602 | Chickering et al. | Oct 1989 | |
5001803 | Discko, Jr. | Mar 1991 |