Air analysis apparatus; Computer hardware for communicating audio, video and data between computers via a global computer network, wide-area computer networks, and peer-to-peer computer networks; Computer network hubs, switches and routers; Computer network interface devices; Electric motor control units for swimming pool, spa, water park and fountain pumps; Electronic instruments, namely, logic analyzers; Microscopes, including stereomicroscopes; Radio and television aerials; Radio antennas;...