Number | Name | Date | Kind |
---|---|---|---|
D165839 | Hill | Feb 1952 | |
D281070 | Karliner et al. | Oct 1985 | |
D282072 | Miller et al. | Jan 1986 | |
3879140 | Ritter | Apr 1975 | |
4072429 | Terzian et al. | Feb 1978 | |
4217062 | Trp et al. | Aug 1980 | |
4231668 | Groth et al. | Nov 1980 | |
4422789 | Charney et al. | Dec 1983 | |
4551036 | Karliner et al. | Nov 1985 |