US PATENT SUBCLASS 342 / 430
.~.~.~.~ Including plural moving antennas

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  DF  .~ Beacon or receiver {2}
417  DF  .~.~ Direction-finding receiver only {14}
428  DF  .~.~.~ With continuously movable antenna pattern {3}
430.~.~.~.~ Including plural moving antennas

DEFINITION

Classification: 342/430

Including plural moving antennas:

(under subclass 428) Subject matter including more than one antenna that changes position, usually rotating about an axis.