US PATENT SUBCLASS 399 / 173
.~.~.~ Needle type

Current as of: June, 1999
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399 /   HD   ELECTROPHOTOGRAPHY

130  DF  IMAGE FORMATION {30}
168  DF  .~ Charging {3}
170  DF  .~.~ Corona {3}
173.~.~.~ Needle type

DEFINITION

Classification: 399/173

Needle type:

(under subclass 170) Subject matter wherein the corona is produced by a pin electrode or electrodes.