Scientific, surveying, [ photographic, cinematographic, ] optical, weighing, measuring, signalling, checking and teaching apparatus and instruments, namely, apparatus and instruments for measuring a property of light such as its intensity, wavelength distribution, phase, pulse length, or pulse energy; apparatus and instruments for measuring a property of an electromagnetic signal, in particular its frequency; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity, namely, locking electronics of locking of an electronic signal to a reference signal or reference frequency; apparatus and instruments for conducting, transforming or controlling electromagnetic radiation; in particular, light, namely, optical components; mirrors; scanning systems for electromagnetic radiation; apparatus and instruments for the measurement and stabilization of a frequency or of a frequency distribution of electromagnetic radiation; lasers; laser measuring systems which include a source of laser radiation; laser systems which include a material processing device; frequency comb generators, short pulse lasers, ultra-short pulse lasers, continuous wave lasers; electronics and electronic systems for controlling, synchronising and stabilising lasers, namely, frequency stabilizers, repetition rate stabilizers, phase locking electronics; electromagnetic radiation detectors; terahertz radiation detectors; apparatus for recording, transmission or reproduction of [ sound or ] images; digital recording media such as compact discs, DVDs featuring training software or operating software for lasers and for apparatus and instruments for measuring or controlling a property of light; [ calculating machines, data processing equipment and computers; ] computer training software or computer operating software for lasers and for apparatus and instruments for measuring or controlling a property of light; gas detectors for detecting the presence of gas; spectroscopy apparatus, apparatus for spectroscopic detection of atoms and molecules, apparatus for calibration of spectrographs, apparatus for dissemination of time and frequency information of an electronic signal

Surgical, medical, [ dental and veterinary ] apparatus and instruments, namely, [ laser scalpels, ] laser systems for diagnostics, [ laser surgery systems, ] laser systems for therapy, and ophthalmologic laser

Education services, namely, providing seminars and workshops in the field of optical technology, laser technology, laser surgery or laser therapy; training services in the field of optical technology, laser technology, laser surgery or laser therapy; entertainment services in the nature of performances with lasers

Scientific and technological services, namely, research and design in the field of optical technology, laser technology, laser surgery or laser therapy; scientific and technological services, namely, scientific research and industrial analysis in the field of optical technology, laser technology, laser surgery or laser therapy; design and development of computer hardware and software