US PATENT SUBCLASS 210 / 371
.~.~.~.~ With variable flow controller

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

348  DF  FILTER {25}
359  DF  .~ Movable medium {12}
360.1  DF  .~.~ Centrifugal extractor {12}
369  DF  .~.~.~ Discharging residue {3}
371.~.~.~.~ With variable flow controller

DEFINITION

Classification: 210/371

(under subclass 369) Apparatus comprising a variable controller for flow of residue.

SEE OR SEARCH THIS CLASS, SUBCLASS:

418+, for fixed filter and flow controller and see the search notes thereunder.