US PATENT SUBCLASS 432 / 248
.~ Protected, lined or reinforced melt holding section

Current as of: June, 1999
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432 /   HD   HEATING

247  DF  HEATING OR HEAT RETAINING WORK CHAMBER STRUCTURE {5}
248.~ Protected, lined or reinforced melt holding section

DEFINITION

Classification: 432/248

(under subclass 247) Apparatus in which the furnace has a melt holding or receiving section that is specialized to withstand the action of the melt by having reinforcing means, a lining, or other protective structure.

SEE OR SEARCH THIS CLASS, SUBCLASS:

238, for a heating apparatus having a wall, floor or roof element protected by cooling means.