US PATENT SUBCLASS 204 / 298.06
.~.~.~ Triode, tetrode, auxiliary electrode or biased workpiece

Current as of: June, 1999
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204 /   HD   CHEMISTRY: ELECTRICAL AND WAVE ENERGY

193  DF  APPARATUS {5}
298.01  DF  .~ Coating, forming or etching by sputtering {2}
298.02  DF  .~.~ Coating {13}
298.06.~.~.~ Triode, tetrode, auxiliary electrode or biased workpiece

DEFINITION

Classification: 204/298.06

Triode, tetrode, auxiliary electrode or biased workpiece:

(under subclass 298.02) Apparatus including electrode means (e.g., thermionic filament, screen grid, auxiliary electrode, etc.) in addition to an anode and a cathode, or including workpiece biasing means.