Number | Name | Date | Kind |
---|---|---|---|
2919117 | Hoffman | Dec 1959 | |
3314475 | Valyi | Apr 1967 | |
4064866 | Knight, Jr. | Dec 1977 | |
4080703 | Beck, Jr. | Mar 1978 | |
4097720 | Sand | Jun 1978 | |
4098261 | Watt | Jul 1978 | |
4269172 | Parker et al. | May 1981 | |
4401156 | Wojtecki et al. | Aug 1983 | |
4635710 | Shelley | Jan 1987 | |
5181562 | Kuriki | Jan 1993 | |
5195289 | La Londe et al. | Mar 1993 | |
5454428 | Pickard et al. | Oct 1995 | |
5459810 | Villa | Oct 1995 | |
5597033 | Cali | Jan 1997 |
Number | Date | Country |
---|---|---|
1359891 | Mar 1994 | FRX |
Entry |
---|
"Heat-Line 2000", Knud Holscher Industriel Design Denmark, date unknown. |
"Radiantpanel hot water baseboard heating", Radiant Technology, Inc., date unknown. |