US PATENT SUBCLASS 340 / 870.44
.~.~ With discharge device (e.g., CRT)


Current as of: June, 1999
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340 /   HD   COMMUNICATIONS: ELECTRICAL

870.01  DF  CONTINUOUSLY VARIABLE INDICATING (E.G., TELEMETERING) {15}
870.4  DF  .~ With particular receiver (e.g., ratiometer) {3}
870.44.~.~ With discharge device (e.g., CRT)


DEFINITION

Classification: 340/870.44

With discharge device (e.g., CRT):

(under subclass 870.4) Subject matter having a device which is intended to have an electrical current flow between two spaced electrodes, at least part of the path followed by the flow being constituted by a gas vapor or vacuum.

SEE OR SEARCH CLASS

313, Electric Lamp and Discharge Devices, appropriate subclasses for space discharge devices, per se.

315, Electric Lamp and Discharge Devices: Systems, appropriate subclasses for cathode ray and gas tube circuits, per se.

327, Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems, appropriate subclasses for miscellaneous electron discharge device circuits.