|
GB509220A
|
|
Improvements in or relating to lamps for diffusing conditioned air
|
|
GB509568A
|
|
Improvements in or relating to the air-conditioning of premises and confined enclosures to which these improvements are applied
|
|
GB486762A
|
|
Improvements in temperature indicating and regulating apparatus
|
|
US2278113A
|
|
Galvanometer contact device
|
|
GB471378A
|
|
Improvements in electric systems for automatic regulation of the temperature in railway vehicles
|
|
US2137059A
|
|
Electromagnetic system for the automatic regulation of temperatures
|
|
GB418577A
|
|
Improvements in or relating to sensitive electro-magnetic relay arrangements
|
|
US2057902A
|
|
Relay
|
|
GB353550A
|
|
Improvements in a method for central heating by steam and means for carrying out this method
|
|
GB270113A
|
|
Improvements in or relating to central heating plants
|
|
GB251379A
|
|
Improvements in or relating to central heating
|
|
US1581591A
|
|
Water-heating system
|
|
GB240938A
|
|
Improvements in or relating to central heating apparatus
|
|
GB209251A
|
|
Improved method of and apparatus for central heating
|
|
US1629043A
|
|
Apparatus for central heating
|
