US PATENT SUBCLASS 342 / 385
.~ Beacon or receiver

Current as of: June, 1999
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342 /   HD   COMMUNICATIONS: DIRECTIVE RADIO WAVE SYSTEMS AND DEVICES (E.G., RADAR, RADIO NAVIGATION)

350  DF  DIRECTIVE {10}
385.~ Beacon or receiver {2}
386  DF  .~.~> With transmisson of bearing or position determinative signals {6}
417  DF  .~.~> Direction-finding receiver only {14}

DEFINITION

Classification: 342/385

Beacon or receiver:

(under subclass 350) Subject matter including means for sending or receiving distinctive directive signals.

(1) Note. By "directive" signals is meant signals which denote course, direction, or orientation.

SEE OR SEARCH THIS CLASS, SUBCLASS:

450+, for position indicating involving the use of signals which have no distinctive bearing or position determinative characteristics.