US PATENT SUBCLASS 122 / 243
.~.~ Fluid fuel

Current as of: June, 1999
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122 /   HD   LIQUID HEATERS AND VAPORIZERS

235.11  DF  WATER TUBE {52}
242  DF  .~ Capillary {1}
243.~.~ Fluid fuel

DEFINITION

Classification: 122/243

(under subclass 242) Devices heated by fluid fuel.

SEE OR SEARCH THIS CLASS, SUBCLASS:

348, for vertical water tube boilers having internal fire tubes.