Number | Name | Date | Kind |
---|---|---|---|
D300352 | Ronvik | Mar 1989 | |
626454 | Brintnall | Jun 1899 | |
3955556 | Pangborn et al. | May 1976 | |
4510890 | Cowan | Apr 1985 | |
5146911 | Adams | Sep 1992 | |
5163119 | Windon | Nov 1992 |
Entry |
---|
Domestic Engineering, p. 18, Water Heater, May 1949. |