| Number | Name | Date | Kind |
|---|---|---|---|
| 670234 | Hughen | Mar 1901 | |
| 1278636 | Green | Sep 1918 | |
| 2199421 | Stevens, Jr. | May 1940 | |
| 2515600 | Hayes | Aug 1950 | |
| 2651546 | Palm | Sep 1953 | |
| 3083913 | Coffman et al. | Apr 1963 | |
| 3211381 | Rasmussen | Oct 1965 | |
| 3339843 | Horton | Sep 1967 | |
| 3388868 | Watson et al. | Jun 1968 | |
| 3446285 | Hout | May 1969 | |
| 3481545 | Cooke et al. | Dec 1969 | |
| 3601320 | Du Plessis | Aug 1971 | |
| 3604630 | Conti | Sep 1971 | |
| 4165834 | Pitchon et al. | Aug 1979 | |
| 4667882 | Pacifici | May 1987 | |
| 5031834 | Simpson | Jul 1991 | |
| 5133500 | Simpson | Jul 1992 |
| Number | Date | Country |
|---|---|---|
| 5-176605 | Jul 1993 | JPX |
| 673256 | Jul 1979 | SUX |
| 782734 | Nov 1980 | SUX |
| 1007571 | Mar 1983 | SUX |
| 1147257 | Mar 1985 | SUX |
| 2116013 | Sep 1983 | GBX |
| Entry |
|---|
| "Field Mark" Foam Marker, The Best of Farm Show Supplemental issue, p. 37, 1985. |