Number | Name | Date | Kind |
---|---|---|---|
D154209 | Meirink | Jun 1949 | |
D199297 | Landell et al. | Sep 1964 | |
D199513 | Landell et al. | Nov 1964 | |
D217548 | Niemann | May 1970 | |
D228498 | Ritzenthaler | Oct 1973 | |
D274352 | Haug | Jun 1984 | |
1835301 | Hennessey | Dec 1931 | |
2496520 | Daniel | Feb 1950 | |
3005995 | Bickford | Oct 1961 | |
3443266 | Mongerson et al. | May 1969 | |
3827088 | Arnold et al. | Aug 1974 | |
4398309 | Simons | Aug 1983 | |
4457031 | Moore | Jul 1984 |