DAVXF

Cable broadcast transmission machines and apparatus; Cable television converters; Digital door locks; Downloadable BIOS (basic input output system) computer programs; Downloadable USB (universal serial bus) operating software; Educational apparatus, namely, blocks used as teaching aids for modeling chemical compounds, visualization of math concepts; Electronic and optical communications instruments and components, namely, optical transmitters; Fiber optic instruments, namely, testers for measuring optical insertion loss; Mobile hotspot devices; Protective eyewear; Signal mirrors; Sirens; USB (universal serial bus) hardware; Video processors; Videophones