US PATENT SUBCLASS 209 / 3.3
.~.~ Marking or tagging item

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

3  DF  PRECEDENT PREPARATION OF ITEMS OR MATERIALS TO FACILITATE SEPARATION {2}
3.1  DF  .~ Sorting special items or sorting by methods and apparatus includible in subclasses 509 through 707 {2}
3.3.~.~ Marking or tagging item

DEFINITION

Classification: 209/3.3

Marking or tagging item:

(under subclass 3.1) Methods and apparatus wherein materials or items are marked or tagged to facilitate their separation.