US PATENT SUBCLASS 327 / 226
.~.~.~ With single electron tube

Current as of: June, 1999
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327 /   HD   MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS

100  DF  SIGNAL CONVERTING, SHAPING, OR GENERATING {29}
185  DF  .~ Particular stable state circuit (e.g., tristable, etc.) {12}
199  DF  .~.~ Circuit having only two stable states (i.e., bistable) {11}
226.~.~.~ With single electron tube

DEFINITION

Classification: 327/226

With single electron tube:

(under subclass 199) Subject matter wherein a solitary active device is included which possesses two or more spaced electrodes and in which current flow therebetween comprises

elemental negatively charged particles.

SEE OR SEARCH CLASS

313, Electric Lamp and Discharge Devices, appropriate subclasses for electron tube structure, in general.