| Number | Name | Date | Kind |
|---|---|---|---|
| 1355033 | Cheape | Oct 1920 | |
| 2386092 | Cornish | Oct 1945 | |
| 2533155 | Von Hacht | Dec 1950 | |
| 3683581 | Yamaso | Aug 1972 | |
| 3944080 | Hansen | Mar 1976 | |
| 4080022 | Canfield et al. | Mar 1978 | |
| 4632259 | Cameron | Dec 1986 | |
| 5060808 | Engman | Oct 1991 | |
| 5071014 | Robinson | Dec 1991 | |
| 5393136 | Grabowski et al. | Feb 1995 | |
| 5405020 | Fotioo | Apr 1995 | |
| 5499481 | Targetti | Mar 1996 | |
| 5615936 | Simmons et al. | Apr 1997 |
| Number | Date | Country |
|---|---|---|
| 512502 | May 1955 | CAX |
| 729462 | Mar 1966 | CAX |
| 2262770 | Sep 1975 | FRX |
| 652472 | Feb 1963 | ITX |
| 1761 | May 1902 | GBX |
| 591288 | Aug 1947 | GBX |
| 2169492 | Jul 1986 | GBX |
| Entry |
|---|
| Popular Science "Kitchen Corner", Oct. 1954, p. 118. |