Number | Name | Date | Kind |
---|---|---|---|
2765630 | Shaw | Oct 1956 | |
3453837 | Sandstrom et al. | Jul 1969 | |
3777505 | Otaki | Dec 1973 | |
4151723 | Gardner | May 1979 | |
4299095 | Cassarino | Nov 1981 | |
4406133 | Saunders et al. | Sep 1983 | |
4519215 | Barnett | May 1985 | |
4538420 | Nelson | Sep 1985 | |
4630449 | Adams | Dec 1986 | |
4663941 | Janke | May 1987 | |
4723414 | Harutachi et al. | Feb 1988 |
Entry |
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Demand Defrost Control CR70A, Honeywell 60-2070-5, pp. 1-13, 1974. |
CEC KT33, Cooling Energy Control Limited, Wimbledon, London, pp. 1-3, (no date). |
Frostec, Esswood Corporation, Cincinnati, Ohio, pp. 1-4, 1987. |