|
GB813959A
|
|
A cylindrical furnace
|
|
GB755175A
|
|
Improvements in or relating to fluid heater
|
|
GB757762A
|
|
Improvements in or relating to a vertical tube heater
|
|
GB737729A
|
|
Improvements in or relating to steam boilers
|
|
GB708126A
|
|
Improvements in or relating to fluid heaters
|
|
GB713082A
|
|
Improvements in or relating to water-tube steam boilers
|
|
GB664019A
|
|
Improvements in or relating to steam boilers
|
|
GB651534A
|
|
Improvements relating to cylindrical furnaces and sector plates therefor
|
|
GB580671A
|
|
Improvements in or relating to steam boilers
|
|
CA593395A
|
|
Tubular heater
|
|
CA573947A
|
|
Vertical tube heaters with unequal tube distribution
|
|
CA439216A
|
|
Boiler construction
|
|
CA480113A
|
|
Segmental tube sheets
|
|
CA502957A
|
|
Bubble tower construction and method of fractionating vapors
|
|
CA564410A
|
|
Air heater
|
|
CA564936A
|
|
Vertical tube heater
|
