US PATENT SUBCLASS 431 / 145
.~ Fluid

Current as of: June, 1999
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431 /   HD   COMBUSTION

144  DF  BURNER CAP, COVER OR EXTINGUISHER {2}
145.~ Fluid

DEFINITION

Classification: 431/145

(under subclass 144) Apparatus using either a liquid or gas to cool, smother, or blow out the flame.