US PATENT SUBCLASS 209 / 20
.~ Gaseous suspension and stratifying


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

12.1  DF  PLURAL, DIVERSE SEPARATING OPERATIONS {17}
20.~ Gaseous suspension and stratifying


DEFINITION

Classification: 209/20

(under subclass 12.1) Means and apparatus employing both gaseous suspension and stratifying to separate or segregate components of a mixture of solids into grades or classes of like characteristics.

SEE OR SEARCH THIS CLASS, SUBCLASS:

19, for a combination including gaseous suspension and stratifying.

133+, for particulars of gaseous suspension separators.

422+, for particulars of stratifiers.