US PATENT SUBCLASS 209 / 643
.~.~ Suction

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

509  DF  SORTING SPECIAL ITEMS, AND CERTAIN METHODS AND APPARATUS (E.G., POCKET TYPE AND LIGHT RESPONSIVE SORTING, ETC.) FOR SORTING ANY ITEMS {11}
606  DF  .~ Separating means {33}
643.~.~ Suction

DEFINITION

Classification: 209/643

Suction:

(under subclass 606) Methods and apparatus wherein items are separated by applying suction thereto.