US PATENT SUBCLASS 342 / 363
.~.~.~ Circular

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}
361  DF  .~ Including polarized signal communication transmitter or receiver {3}
362  DF  .~.~ Receiver only {2}
363.~.~.~ Circular

DEFINITION

Classification: 342/363

Circular:

(under subclass 362) Subject matter including the simultaneous transmission of vertically and horizontally polarized radio waves, such that a vector representing the waves has a constant magnitude and varies continuously about a point.