US PATENT SUBCLASS 313 / 632
.~.~ Cathode or anode

Current as of: June, 1999
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313 /   HD   ELECTRIC LAMP AND DISCHARGE DEVICES

567  DF  WITH GAS OR VAPOR {24}
631  DF  .~ Having particular electrode structure {1}
632.~.~ Cathode or anode

DEFINITION

Classification: 313/632

Cathode or anode:

(under subclass 631) Subject matter wherein the electrode is a cathode or an anode.

(1) Note. Included are lamps or discharge devices of the gas or vapor type which operate on direct current or pulsating current in one direction, for example, a flash tube.

SEE OR SEARCH THIS CLASS, SUBCLASS:

633, for an electrode composition used in a discharge device.