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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.
video monitoring system comprising a camera for transmitting images to a remote location; video monitoring system comprising a microphone, a speaker, a doorbell, and a camera for transmitting images to a remote location; system for multiple doorbell data sharing, namely, a computer memory configured to store images from a first doorbell and a second doorbell; system for multiple video camera data sharing, namely, a computer memory configured to store images from a first video camera and a second video camera