US PATENT SUBCLASS 126 / 112
.~ Feeding air
Current as of: June, 1999
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DEFINITION
Classification: 126/112
(under subclass 99) Hot air furnaces having devices formed and arranged for heating and introducing air into the combustion-chamber.
SEE OR SEARCH THIS CLASS, SUBCLASS:
15, 77, 78, 146, and 193, for related subject matter.
SEE OR SEARCH CLASS
110, Furnaces,
201, for a locomotive type furnace provided with an air preheater; subclass 254 for an incinerator provided with an air preheater; and subclasses 302+ for other types of solid fuel furnaces provided with air preheaters.
