US PATENT SUBCLASS 165 / 118
.~.~ Vertical cone or drum

Current as of: June, 1999
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165 /   HD   HEAT EXCHANGE

110  DF  WITH FIRST FLUID HOLDER OR COLLECTOR OPEN TO SECOND FLUID {2}
115  DF  .~ Trickler {3}
118.~.~ Vertical cone or drum

DEFINITION

Classification: 165/118

(under subclass 115) Apparatus in which the heated or cooled surface is a section of a figure of revolution having a vertical axis.