remote manual television controllers; interactive controllers for television sets at subscriber locations; directional antennas; digital radio transmitters and transceivers, television studio equipment, namely controllers and switches for television video signals, radio signal relays and microwave antennas; satellite transceivers; satellite based video signal switches; television broadcasting transmitters and antennas; TV transmitters and transceivers; mobile TV transmitters, receivers and controllers; computers for control of television systems; television control software; microwave digital transmitters for transmission of television control signals; subscriber signal encoders and decoders; radio and TV message encryption apparatus; facsimile receivers and transmitters; graphic pattern and telegram display and printing apparatus; and delectronic computer controlled billing, pricing and accounting apparatus for subscriber, vendor and network locations
Electrical and Scientific Apparatus