US PATENT SUBCLASS 210 / 272
.~.~.~ Rotating on stationary axis

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}
269  DF  .~ With rehabilitation means {6}
271  DF  .~.~ Surface traversing type {2}
272.~.~.~ Rotating on stationary axis

DEFINITION

Classification: 210/272

(under subclass 271) Apparatus in which the rehabilitation means is rotatable about a stationary axis.