US PATENT SUBCLASS 239 / 139
.~.~ Spaced jacket or compartment for heating fluid

Current as of: June, 1999
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239 /   HD   FLUID SPRINKLING, SPRAYING, AND DIFFUSING

128  DF  WITH HEATING OR COOLING MEANS FOR THE SYSTEM OR SYSTEM FLUID {5}
135  DF  .~ Heating means {2}
139.~.~ Spaced jacket or compartment for heating fluid

DEFINITION

Classification: 239/139

(under subclass 135) Apparatus including a wall separated from and forming with the apparatus or a part thereof, an enclosed chamber or space through which the heat exchange medium passes or whereby it is contained.