US PATENT SUBCLASS 210 / 404
.~.~.~ Annular segmented compartment

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

348  DF  FILTER {25}
359  DF  .~ Movable medium {12}
402  DF  .~.~ Drum type {2}
404.~.~.~ Annular segmented compartment

DEFINITION

Classification: 210/404

(under subclass 402) Apparatus comprising an inner wall surrounded by a filter element forming an annular space divided into segments by partitions.