US PATENT SUBCLASS 431 / 348
.~ Flame sweeps dished incandescing surface

Current as of: June, 1999
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431 /   HD   COMBUSTION

347  DF  INCANDESCING OR REFLECTING COMPONENT, E.G., REIGNITING HOT SPOT, ETC. {1}
348.~ Flame sweeps dished incandescing surface

DEFINITION

Classification: 431/348

(under subclass 347) Apparatus, including a concave radiating surface which is swept by flames from fuel discharged across it.