US PATENT SUBCLASS 210 / 177
.~ With treating fluid addition

Current as of: June, 1999
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210 /   HD   LIQUID PURIFICATION OR SEPARATION

175  DF  WITH HEATER OR HEAT EXCHANGER {8}
177.~ With treating fluid addition {1}
178  DF  .~.~> With mechanical agitator or movable separator

DEFINITION

Classification: 210/177

(under subclass 175) Apparatus having means for adding a treating fluid.