US PATENT SUBCLASS 209 / 406
.~.~.~ Drum

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

233  DF  SIFTING {16}
363  DF  .~ Elements {7}
*  DD  .~.~ Frames {4}
406.~.~.~ Drum {1}
407  DF  .~.~.~.~> Sectional

DEFINITION

Classification: 209/406

(under subclass 363) Frames to which the sifting elements of drum or cylindrical sifters are attached.