US PATENT SUBCLASS 340 / 309.3
.~.~ With diversely controlled indicator

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

286.01  DF  SYSTEMS {24}
309.15  DF  .~ Timer controlled {4}
309.3.~.~ With diversely controlled indicator

DEFINITION

Classification: 340/309.3

(under subclass 309.15) Subject matter including an additional means, not under the control of the timer, for conveying information or intelligence.