| |
Class Information
Number: 237/1SL
Name: Heating systems > Miscellaneous > Special liquid
Description:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 5533669 |
Heat transfer apparatus |
Jul. 9, 1996 |
| 4880051 |
Piping apparatus for melting snow and ice |
Nov. 14, 1989 |
| 4844020 |
Waste heat recovery system |
Jul. 4, 1989 |
| 4815526 |
Central space heating apparatus |
Mar. 28, 1989 |
| 4662433 |
Individual comfort control device |
May. 5, 1987 |
| 4436079 |
Fireplace for heating indoor spaces and water for sanitary use |
Mar. 13, 1984 |
| 4123219 |
Chemical storage of radiant energy |
Oct. 31, 1978 |
| 4060194 |
Heating system and element therefor |
Nov. 29, 1977 |
| 3994675 |
Chemical storage of radiant energy |
Nov. 30, 1976 |
| 3964416 |
Boiler reactor |
Jun. 22, 1976 |
|
|
|
