US PATENT SUBCLASS 110 / 209
.~.~ By undergrate means

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


110 /   HD   FURNACES

203  DF  WITH EXHAUST GAS TREATMENT MEANS {5}
208  DF  .~ Furnace having multiple firebox {1}
209.~.~ By undergrate means

DEFINITION

Classification: 110/209

By undergate means:

(under subclass 208) Apparatus provided with means for passing combustion products beneath a combustion reaction.