|
GB676200A
|
|
Improvements in or relating to gas fired air heaters
|
|
GB542061A
|
|
Improvements in or relating to apparatus for roasting cereal products, coffee beans and the like
|
|
US2122132A
|
|
Refractory brick or radiant for surface combustion burners
|
|
GB377682A
|
|
Improvements in or relating to powdered fuel burners
|
|
GB352516A
|
|
Improvements in or relating to powdered fuel burners
|
|
GB318561A
|
|
Improvements relating to the heating of air and other gases
|
|
GB313059A
|
|
Improvements relating to the supply of gas and air mixture to gas burners
|
|
GB239946A
|
|
Improvements relating to machines for mixing gas and air
|
|
GB240214A
|
|
Improvements relating to gas and air mixing machines
|
