US PATENT SUBCLASS 204 / 239
.~.~.~.~ With heater or cooler

Current as of: June, 1999
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204 /   HD   CHEMISTRY: ELECTRICAL AND WAVE ENERGY

193  DF  APPARATUS {5}
194  DF  .~ Electrolytic {11}
232  DF  .~.~ Cells with electrolyte treatment means {4}
237  DF  .~.~.~ Recirculation {2}
239.~.~.~.~ With heater or cooler

DEFINITION

Classification: 204/239

(under subclass 237) Apparatus in which the additional electrolyte treatment means includes a heater or cooler.

(1) Note. Search also this class, subclass 236.

(2) Note. Compare with this class, subclass 241.

(3) Note. For electrolytic cells having heating or cooling means, see this class, subclasses 262 and 274.