US PATENT SUBCLASS 237 / 36
.~.~.~ Fluid fuel

Current as of: June, 1999
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237 /   HD   HEATING SYSTEMS

28  DF  VEHICLE {7}
34  DF  .~ Water {2}
35  DF  .~.~ Car boiler {2}
36.~.~.~ Fluid fuel

DEFINITION

Classification: 237/36

(under subclass 35) Subject matter in which the boiler is heated by fluid fuel.

SEE OR SEARCH CLASS

122, Liquid Heaters and Vaporizers, for boilers, per se.