communication apparatus, namely, radio receivers, radio transmitters, combination radio receivers and transmitters; communication control centers apparatus; cellular radio telephone systems, namely, cellular base stations and cellular radio telephone subscriber apparatus and parts therefor; electrical and electronic circuit elements, namely, antennas, amplifiers, filters, transformers, cavity resonators, fuses, insulators, condensers, inductors, resistors, switches, relays, connectors, plugs and sockets; battery chargers; microphones;[ electric current converters; automatic vehicle location apparatus; emergency medical communications apparatus; ] digital voice protection apparatus; single sideband communications apparatus; signaling and remote control apparatus; security and access control apparatus; [ semiconductor products, namely, integrated circuits, microcomputers, microcontrollers, microprocessors and computer peripherals, memories and semiconductor material therefore; ] data conversion circuits; fiber optic active components; electronic interface circuits; motor control circuits; operational amplifiers; optoelectronics components; [ pressure and temperature sensors; ] telecommunications circuits; [ thyristors and triggers; ] computers and computer systems, namely, hardware and software in the field of electronic data processing; digital signal processors; digital and voice communications networks and components, namely, modems, multiplexers, processors, convertors and switches; radio data communications systems; namely, network central processors, communications controllers, radio frequency modems, and portable data terminals; electronic mobile exchange switches; microcomputer board level apparatus; minicomputer and microcomputer systems; namely, hardware and software in the field of electronic data processing; electronic data switches; micro-to-mainframe interconnect apparatus; network management apparatus; protocol converters; concentrators and gateways; [ vehicle control apparatus and sensors; power modules; relays and drivers; industrial control apparatus and sensors; electronic ballasts; factory automation computer control systems, namely, hardware and software therefore; anti-lock braking systems controls; automotive and industrial sensors; automotive body controls; gas and diesel engine controls; instrumentation devices and components; motor controls; steering controls; suspension controls; transmission controls; ] vehicle navigation apparatus; [ hospital intensive care units; statistical process control apparatus; supervisory control data acquisition apparatus ]

installation, maintenance and repair of electronic equipment, such as radio receiving equipment, radio transmitting equipment, two-way and trunking apparatus, paging apparatus, cellular radiotelephone apparatus and communication control centers and equipment