|
US2641369A
|
|
Crossfeed mechanism
|
|
US2689560A
|
|
Combination water and warm air heating system
|
|
GB672787A
|
|
Improvements in or relating to heating apparatus and method of increasing the heat absorption thereof
|
|
GB662885A
|
|
Improvements in or relating to heating apparatus
|
|
US2535050A
|
|
Vibratory conveyer
|
|
GB718891A
|
|
Improvements in conveyors of the vibratory type
|
|
US2640467A
|
|
Heating apparatus
|
|
US2579325A
|
|
Hot gas agitator for heaters
|
|
US2464216A
|
|
Vibratory conveyer
|
|
US2424755A
|
|
Method and apparatus for burning solid fuels
|
|
US2007372A
|
|
Tuyere fire pot
|
|
CA481805A
|
|
Vibratory conveyor
|
|
CA491828A
|
|
Hot gas agitator for heaters
|
|
CA496088A
|
|
Heating apparatus
|
