US PATENT SUBCLASS 342 / 46
.~ Navigational

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

42  DF  RADAR TRANSPONDER SYSTEM {6}
46.~ Navigational {1}
47  DF  .~.~> Distance measuring equipment (DME) {2}

DEFINITION

Classification: 342/46

Navigational:

(under subclass 42) Subject matter wherein the transponder system is used to direct a vehicle to an intended destination.

SEE OR SEARCH THIS CLASS, SUBCLASS:

701, Data Processing: Vehicles, Navigation, and Relative Location, subclasses 200+ for computer navigation systems, per se.