BORDER PROTECTOR

radio and telephone communication systems and parts therefor, namely antennas, electrical and electronic devices for improving or modifying transmission and/or reception characteristics of antennas and of radio telephones, antenna mounts, transmitters, receivers, transceivers and parts therefor, cellular and radio telephone system boosters, and repeaters and parts therefor, filters, duplexers, electrical conductors, electrical cables, electrical connectors, electrical couplers; and parts and sub-assemblies thereof