US PATENT SUBCLASS 342 / 356
.~.~ Synchronous satellite

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}
352  DF  .~ Including a satellite {6}
356.~.~ Synchronous satellite

DEFINITION

Classification: 342/356

Synchronous satellite:

(under subclass 352) Subject matter wherein the satellite speed in orbit is matched to the speed of rotation of the earth on its axis.