(under subclass 7) Subject matter including an antenna which is more responsive in one direction than in another.
SEE OR SEARCH CLASS
343, Communications: Radio Wave Antennas,
18, for structure for reflecting radio waves; subclasses 100+ for means for sending and/or receiving radio wave energy which is characterized by some quality that varies according to the relative direction, position and/or plane or polarization of the sender and receiver; and subclasses 700+ for antennas, per se, including directional antennas and antennas combined with reflecting and/or refracting means.
