US PATENT SUBCLASS 455 / 508
.~.~.~ Having console

Current as of: June, 1999
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455 /   HD   TELECOMMUNICATIONS

39  DF  TRANSMITTER AND RECEIVER AT SEPARATE STATIONS {14}
500  DF  .~ Plural transmitters or receivers (i.e., more than two stations) {4}
507  DF  .~.~ Central station (e.g., master, etc.) {6}
508.~.~.~ Having console

DEFINITION

Classification: 455/508

Having console:

(under subclass 507) Subject matter having details of an operating control board which monitors the system automatically or via an operator.