US PATENT SUBCLASS 126 / 525
.~.~.~ Secondary outlet leads air to flame

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

500  DF  FIREPLACES OR ACCESSORIES {19}
523  DF  .~ With heat exchanger for room heating air {7}
524  DF  .~.~ Tubular {2}
525.~.~.~ Secondary outlet leads air to flame

DEFINITION

Classification: 126/525

Secondary outlet leads air to flame:

(under subclass 524) Subject matter including means defining an opening along said flow path in the vicinity of the flame for injecting air into the flame to aid in combustion.