US PATENT SUBCLASS 110 / 214
.~.~ Including means to add air

Current as of: June, 1999
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110 /   HD   FURNACES

203  DF  WITH EXHAUST GAS TREATMENT MEANS {5}
210  DF  .~ Afterburning means {3}
214.~.~ Including means to add air

DEFINITION

Classification: 110/214

Including means to add air:

(under subclass 210) Apparatus including means to supply air to the afterburner zone to effect combustion of the unburned components of the gaseous products of combustion.