US PATENT SUBCLASS 110 / 326
.~ Metallic type

Current as of: June, 1999
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110 /   HD   FURNACES

322  DF  BAFFLE OR HEAT RETAINER STRUCTURE {2}
326.~ Metallic type

DEFINITION

Classification: 110/326

Metallic type:

(under subclass 322) Structure wherein the baffle or retainer is composed of metal.