US PATENT SUBCLASS 340 / 331
.~ Periodic or flashing

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

286.01  DF  SYSTEMS {24}
331.~ Periodic or flashing

DEFINITION

Classification: 340/331

(under subclass 286.01) Subject matter having a periodic or flashing signal.

SEE OR SEARCH THIS CLASS, SUBCLASS:

329, for this subject matter where the signal indicator is audible.