US PATENT SUBCLASS 313 / 600
.~.~.~ Two interposed electrodes

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

567  DF  WITH GAS OR VAPOR {24}
581  DF  .~ Three or more electrode discharge device {9}
595  DF  .~.~ Internal start or control electrode between discharge electrodes {3}
600.~.~.~ Two interposed electrodes

DEFINITION

Classification: 313/600

Two interposed electrodes:

(under subclass 595) Subject matter wherein there are at least two electrodes between the two spaced electrodes.

(1) Note. Included are auxiliary electrodes which ionize the gas or vapor of the discharge device but are not in the main discharge path.