9
Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity; apparatus for recording, transmission or reproduction of sound or images; magnetic data carriers, recording discs; automatic vending machines and mechanisms for coin-operated apparatus; cash registers, calculating machines, data processing equipment and computers; fire-extinguishing apparatus.
technological devices for improving acoustic clarity and audio transmission and reception for assisting persons with sensory or cognitive impairments and to preserve hearing levels, namely, adapted stereo headphones, adapted telephones, adapted hands-free cordless telephone units, and adapted computer-telephone, cellular telephone and voice over internet protocol telephone headset units; electronic devices for assisting persons with sensory or cognitive impairments, namely, stereo audio amplification units, and radio audio amplification units; electronic units for minimizing or eliminating electromagnetic audio interferences; voice over internet protocol telephones, and emergency telephones, all adapted for assisting persons with sensory or cognitive impairments, and to preserve hearing levels