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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.
device for calibrating a precision instrument, namely, laser trackers, laser scanners, coordinate measuring machines, articulating arms, photogrammetric instruments, indoor global positioning systems, and structured light devices; device for calibrating a coordinate measuring machine arm; device for calibrating a portable coordinate measuring machine; length reference and scaling artifacts, namely, instruments for measuring distance and length, length measuring gauges and scaling products in the nature of calculating scales, and optical tooling scales for measuring distance; instruments for measuring length, namely, length reference bars for use with laser trackers, articulating arms, coordinate measuring machine arms, or scanners in the field of metrology; precision length references used to calibrate or verify calibration of measuring instruments, namely, laser trackers, laser scanners, coordinate measuring machines, articulating arms, photogrammetric instruments, indoor global positioning systems, and structured light devices; systems for verifying volumetric performance of laser tracker, namely, an instrument for verifying volumetric performance of laser trackers in the nature of a reference length artifact and kinematic mounts for reference length artifacts; field testing products used in conjunction with electronic precision three-dimensional measuring instruments, namely, laser tracker field calibration systems consisting of industrial calibration sensors, calibration blocks for calibration, and optical emission spectrometers; devices used in conjunction with electronic measuring instruments for three-dimensional spatial measurement in industrial applications, namely, theodolites, laser trackers, laser scanners, portable coordinate measuring machines, articulating arms, photogrammetric instruments, indoor global positioning systems and structured light scanners; scientific and measuring equipment used in industrial applications for three dimensional spatial alignment and angular and linear measurement, namely, calibration verification systems for laser trackers, laser scanners, coordinate measuring machines, articulating arms, photogrammetric instruments, indoor global positioning systems, and structured light devices