US PATENT SUBCLASS 210 / 289
.~.~ With particular liquid receiving means or foraminous bed retainer

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

263  DF  PARTICULATE MATERIAL TYPE SEPARATOR, E.G., ION EXCHANGE OR SAND BED {13}
287  DF  .~ Within flow line or flow line connected closed casing {2}
289.~.~ With particular liquid receiving means or foraminous bed retainer

DEFINITION

Classification: 210/289

(under subclass 287) Apparatus which comprises particular means for introducing the untreated liquid to the bed of separatory material, particular means for collecting treated liquid from the bed of separatory material, or particular strainer means within the casing.