Contactless displacement sensors; displacement sensors; contactless contour measuring instruments; contour measuring instruments; contactless surface texture measuring machines and instruments; surface texture measuring machines and instruments; contactless roundness measuring instruments; roundness measuring instruments; optical measuring instruments; laboratory apparatus and instruments; photographic apparatus and instruments; cinematographic apparatus; optical machines and apparatus; measuring machines and instruments; comparators; interferometers; measuring instruments, namely angle dividing apparatus; calibration checkers, namely graduation checkers; inclinometers; flatness measuring machines and instruments; straightness measuring machines and instruments; precision measuring machines and instruments; computers; computer peripheral devices; computer programs; data processing apparatus; 3D scanners; electronic machines; telecommunication machines and apparatus

Repair and maintenance of electronic machines and apparatus; repair and maintenance of telecommunication machines and apparatus; repair and maintenance of power distribution and control machines and apparatus; repair and maintenance of laboratory apparatus and instruments; repair and maintenance of measuring machines and instruments; repair and maintenance of optical machines and apparatus; repair and maintenance of optical measuring instruments; repair and maintenance of computers