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.
telecommunications switching equipment maintenance systems-namely, circuits for monitoring diagnostic information at individual switching units, a processor for centralized performance of diagnostics and maintenance, and a network for communicating diagnostic and maintenance and control signals among the switching units and the processor telephone central office line assignment systems-namely, processors and their associated data bases as individual switching units, a processor for centralized administration of the data bases, and a network for communication of data base information among the switching units and the central processor and parts thereof