Number | Name | Date | Kind |
---|---|---|---|
D278979 | Anderson et al. | May 1985 | |
811489 | Dunwell | Jan 1906 | |
3302774 | Zalkind | Feb 1967 | |
3463309 | Szostek | Aug 1969 | |
3927442 | Foster | Dec 1975 | |
4499353 | Shields | Feb 1985 | |
4574951 | Weaver | Mar 1986 | |
4724964 | Hernandez | Feb 1988 |