US PATENT SUBCLASS 209 / 127.4
.~ Free fall type particle charging

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

127.1  DF  ELECTROSTATIC {7}
127.4.~ Free fall type particle charging

DEFINITION

Classification: 209/127.4

Free fall type particle charging:

(under subclass 127.1) Methods and means wherein electrostatic charges are applied to free falling materials.