US PATENT SUBCLASS 110 / 252
.~.~ With supplementary burner

Current as of: June, 1999
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110 /   HD   FURNACES

235  DF  REFUSE INCINERATOR {17}
251  DF  .~ Including air supply means extending vertically within refuse {1}
252.~.~ With supplementary burner

DEFINITION

Classification: 110/252

With supplementary burner:

(under subclass 251) Apparatus including a burner for discharging hot gases or flames vertically into the mass of refuse.