US PATENT SUBCLASS 313 / 351
.~ Multipointed or serrated edge electrode

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313 /   HD   ELECTRIC LAMP AND DISCHARGE DEVICES

326  DF  ELECTRODE AND SHIELD STRUCTURES {14}
351.~ Multipointed or serrated edge electrode

DEFINITION

Classification: 313/351

(under subclass 326) Electrodes and shields where the electrode or shield is provided with, (1) a plurality of pointed needle-like portions, or (2) with a serrated edge.

SEE OR SEARCH THIS CLASS, SUBCLASS:

309, for discharge devices which have a multipointed or serrated edge electrode.