US PATENT SUBCLASS 126 / 110 C
.~.~ Gas and air mixing

Current as of: June, 1999
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126 /   HD   STOVES AND FURNACES

99 R  DF  HOT-AIR FURNACES {24}
110 R  DF  .~ Compressed air {6}
110 C.~.~ Gas and air mixing

Unofficial Alpha Subclasses: R A AA B C D E

DEFINITION

Classification: 126/110

(under subclass 99) Hot air furnaces for heating air under compression, as distinguished from devices for compressing the air to heat it.