US PATENT SUBCLASS 327 / 523
.~ Gaseous tube


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

518  DF  WITH PARTICULAR CONTROL {3}
523.~ Gaseous tube


DEFINITION

Classification: 327/523

Gaseous tube:

(under subclass 518) Subject matter wherein the controlling means includes an electronic tube into which a small amount of gas or vapor is introduced after the tube has been evacuated.

SEE OR SEARCH THIS CLASS, SUBCLASS:

601+, for miscellaneous circuits having gas tubes of particular structure.

SEE OR SEARCH CLASS

315, Electric Lamp and Discharge Devices: Systems, appropriate subclasses for system wherein a gaseous space discharge tube is the ultimate load or controls a space discharge load.