Number | Name | Date | Kind |
---|---|---|---|
D156337 | Hammer | Dec 1949 | |
D229307 | Shumate | Nov 1973 | |
D300452 | Epperson et al. | Mar 1989 | |
D311764 | Peterson | Oct 1990 | |
D312265 | Epperson et al. | Nov 1990 | |
D343672 | Kobayashi et al. | Jan 1994 | |
4685582 | Pulciani et al. | Aug 1987 | |
4981214 | Rojas | Jan 1991 |