US PATENT SUBCLASS 126 / 163 R
.~ Feeding air

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

152 R  DF  GRATES {16}
163 R.~ Feeding air {1}
163 A  DF  .~.~> Auxiliary grate

Unofficial Alpha Subclasses: R A

DEFINITION

Classification: 126/163

(under subclass 152) Devices provided with air feeding features.

SEE OR SEARCH CLASS

110, Furnaces,

182, 270+ and 288 for similar furnace air feeding structure.