US PATENT SUBCLASS 209 / 292
.~.~.~.~.~ Superposed

Current as of: June, 1999
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209 /   HD   CLASSIFYING, SEPARATING, AND ASSORTING SOLIDS

233  DF  SIFTING {16}
*  DD  .~ Drum sifters {2}
*  DD  .~.~ Horizontal and inclined {4}
288  DF  .~.~.~ Rotating {3}
289  DF  .~.~.~.~ Multiple {2}
292.~.~.~.~.~ Superposed

DEFINITION

Classification: 209/292

(under subclass 289) Series of rotating cylindrical or drum sifters having horizontal or inclined axes, the series being supported one above another.