US PATENT SUBCLASS 209 / 29
.~.~.~.~ With deposition

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

12.1  DF  PLURAL, DIVERSE SEPARATING OPERATIONS {17}
21  DF  .~ Gaseous suspension and sifting {2}
22  DF  .~.~ Coincident {4}
28  DF  .~.~.~ Vertical current {1}
29.~.~.~.~ With deposition

DEFINITION

Classification: 209/29

(under subclass 28) Methods and apparatus in which the suspended material carried by the current is collected.