US PATENT SUBCLASS 209 / 379
.~.~ Clearers

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

233  DF  SIFTING {16}
363  DF  .~ Elements {7}
379.~.~ Clearers {4}
380  DF  .~.~.~> Fluid
381  DF  .~.~.~> Jarring {2}
384  DF  .~.~.~> Pressers
385  DF  .~.~.~> Wipers {3}

DEFINITION

Classification: 209/379

(under subclass 363) Means or devices for clearing or keeping open the sifting passages of sifters which are not classifiable in the subclasses indented hereunder.

SEE OR SEARCH THIS CLASS, SUBCLASS:

323, for plane sifters with unattached reciprocating agitators.