Number | Date | Country | Kind |
---|---|---|---|
81 13546 | Jul 1981 | FRX |
Number | Name | Date | Kind |
---|---|---|---|
3210748 | Onuffer | Oct 1965 | |
3803576 | Dobrzanski et al. | Apr 1974 | |
3955183 | McBrian | May 1976 | |
3975723 | Bowling et al. | Aug 1976 | |
4006451 | Nobile | Feb 1977 | |
4249161 | Mohnhaupt | Feb 1981 | |
4278968 | Arnett et al. | Jul 1981 | |
4438428 | Ober et al. | Mar 1984 |
Number | Date | Country |
---|---|---|
1258395 | Dec 1971 | GBX |
Entry |
---|
"Fridge Alarm", Elektor, vol. 6, pp. 11-34, 11-35, Nov. 1980. |