US PATENT SUBCLASS 505 / 200
.~ Electric discharge tube


Current as of: June, 1999
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505 /   HD   SUPERCONDUCTOR TECHNOLOGY: APPARATUS, MATERIAL, PROCESS

150  DF  HIGH TEMPERATURE (Tc GREATER THAN 30 K) DEVICES, SYSTEMS, APPARATUS, COM- PONENTS, OR STOCK, OR PROCESSES OF USING {26}
200.~ Electric discharge tube


DEFINITION

Classification: 505/200

Electric discharge tube:

(under subclass 150) Device having a closed usually glass container under vacuum or containing a specific gas used for producing, influencing, or using a flow of electrons or ions to generate light or other electromagnetic radiation.

SEE OR SEARCH CLASS

315, Electric Lamp and Discharge Devices: Systems.

328, Miscellaneous Electron Space Discharge Device Systems.

330, Amplifiers, for crossed field amplifier.

331, Oscillators, particularly

107, for oscillators containing low temperature superconducting material.