US PATENT SUBCLASS 209 / 311
.~.~.~.~ Multiple

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

233  DF  SIFTING {16}
*  DD  .~ Plane sifters {2}
*  DD  .~.~ Horizontal and inclined {4}
*  DD  .~.~.~ Reciprocating {6}
311.~.~.~.~ Multiple {4}
312  DF  .~.~.~.~.~> With pneumatic treatment
313  DF  .~.~.~.~.~> Alined
314  DF  .~.~.~.~.~> Stepped
315  DF  .~.~.~.~.~> Superposed {4}

DEFINITION

Classification: 209/311

(under subclass 233) Pluralities of flat reciprocating sifters associated otherwise than as defined in the subclasses indented hereunder.