Number | Name | Date | Kind |
---|---|---|---|
23068 | Leggett | Feb 1894 | |
D255706 | Adam | Jul 1980 | |
D275315 | Sarnoff et al. | Aug 1984 | |
D278459 | Cook | Apr 1985 | |
D284266 | Resan | Jun 1986 | |
D300558 | Warnekros | Apr 1989 | |
941415 | Heatherington et al. | Nov 1909 | |
2641496 | Benezet et al. | Jun 1953 | |
3268920 | Beer | Aug 1966 | |
3982289 | Robbins | Sep 1976 |