US PATENT SUBCLASS 122 / 5.52
.~ Combustion gas and vapor contact

Current as of: June, 1999
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122 /   HD   LIQUID HEATERS AND VAPORIZERS

5.51  DF  AIR-INJECTED {1}
5.52.~ Combustion gas and vapor contact

DEFINITION

Classification: 122/5.52

Combustion gas and vapor contact:

(under subclass 5.51) Devices wherein the vapor is combined with the byproducts of burning fuels.