US PATENT SUBCLASS 122 / 328
.~.~.~.~ Fluid fuel

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

235.11  DF  WATER TUBE {52}
324  DF  .~ Straddle {2}
*  DD  .~.~ Single upper drum {1}
327  DF  .~.~.~ Plural lower drum {3}
328.~.~.~.~ Fluid fuel

DEFINITION

Classification: 122/328

(under subclass 327) Devices heated by fluid fuel.