9 Scientific, nautical, surveying, photographic, cinematographic, optical, measuring, signaling, life-saving and teaching apparatus and instruments, namely, computers, cameras, optical scanners and inductive sensors for metal; apparatus for recording, transmission or reproduction of sound or images; data processing equipment, computers; measuring apparatus, namely, cameras, optical sensors, ultrasound apparatus in the nature of ultrasound inspection devices for non-medical testing and detecting flaws, electro-magnetic acoustic transducer (EMAT) sensors based on electro-magnetic acoustic transducers for sound, inductive sensors for metal ,and X-ray sensors for measuring metal objects and determining the presence of metal; measuring devices, namely, cameras, optical sensors, ultrasound apparatus in the nature of in the nature of ultrasound inspection devices for non-medical testing and detecting flaws, electro-magnetic acoustic transducer (EMAT) sensors based on electro-magnetic acoustic transducers for sound, inductive sensors for metal and X-ray sensors for measuring metal objects and determining the presence of metal; measuring instruments, namely, instruments based on various technologies, namely optical and inductive instruments in the nature of cameras and resistance measuring instruments for measuring physical parameters such as dimensions, shape of an object, material resistivity, mechanical properties of a material, material speed and material temperature; detectors namely, surface crack detectors, detectors of other surface defects and detectors of material property defects