Number | Name | Date | Kind |
---|---|---|---|
3013399 | Simmons et al. | Dec 1961 | |
3029610 | Armentrout | Apr 1962 | |
3138006 | Moorman et al. | Jun 1964 | |
3188828 | Wayne | Jun 1965 | |
3383877 | Liebermann et al. | May 1968 | |
3518841 | West, Jr. | Jul 1970 | |
3946286 | Kinnunen et al. | Mar 1976 | |
4269035 | Gelbard | May 1981 |
Number | Date | Country |
---|---|---|
WO8300211 | Jan 1983 | WOX |
Entry |
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"ALTECH Frost Senzor RA3 Electronic Demand Defrost Controller"-Altech Controls Corporation. |