US PATENT SUBCLASS 210 / 142
.~ Plural treating units or sections sequentially controlled

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

141  DF  WITH PROGRAM ACTUATOR {1}
142.~ Plural treating units or sections sequentially controlled

DEFINITION

Classification: 210/142

(under subclass 141) Apparatus in which there is a plurality of treating units or sections which are controlled in sequence.