|
GB747670A
|
|
Improvements in heating or cooling systems for rooms of all kinds
|
|
GB679952A
|
|
Improvements in heating or cooling systems for rooms
|
|
US2662743A
|
|
Suspended panel type air conditioner
|
|
US2592887A
|
|
Hot-water heating system
|
|
US2718383A
|
|
Heating and ventilation system
|
|
GB641597A
|
|
Improvements in hot water boilers
|
|
GB493980A
|
|
Improvements in methods of and apparatus for the combustion of waste materials
|
|
GB479962A
|
|
Method and means for the combustion of waste furnace gases
|
|
GB472262A
|
|
Improvements in or relating to combustion systems for boiler furnaces or the like
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