US PATENT SUBCLASS 342 / 365
.~.~ 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}
365.~.~ Circular

DEFINITION

Classification: 342/365

Circular:

(under subclass 361) 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.