Number | Date | Country | Kind |
---|---|---|---|
53/109404 | Sep 1978 | JPX | |
53/158008 | Dec 1978 | JPX | |
53/159626 | Dec 1978 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
3839616 | Risman | Oct 1974 | |
4080564 | Nitta et al. | Mar 1978 | |
4097707 | Kobayashi et al. | Jun 1978 | |
4162381 | Buck | Jul 1979 | |
4187542 | Ball et al. | Feb 1980 | |
4213023 | Satoh et al. | Jul 1980 |
Number | Date | Country |
---|---|---|
52-13150 | Feb 1977 | JPX |
Entry |
---|
Radio Electronics, vol. 47, No. 7, pp. 46-47, Jul. 1976; "Build a Gas Sensor", By C. R. Lewart. |