9 thermally prestressed safety glass parts made of borosilicate glass for inspection glasses, primarily for scientific apparatus and instruments, namely, eyepieces for microscopes, telescopes, binoculars, cameras, glass cases for precision balances; for navigation apparatus and instruments, namely, gyroscopes, odometer glass covers, liquid crystal display panels, displays presenting a dial, namely, navigation displays used in land, water-borne and aerial transport, night vision goggles, telescopes, compasses; for surveying apparatus, namely, telescopes, binoculars, theodolites, lenses; for electrical apparatus and instruments, namely, electrical gauges, electricity usage meters, covers for covering display panels, cathode ray tubes, computer monitors; for photographic and film instruments and apparatus and video equipment, namely, camera lenses, camera lens covers, camera cover plates, flash tubes, filters for binoculars, cameras, video monitors, for audio and/or video recorders, audio and/or video players, audio and/or video mixers, audio and/or video transmitters and receivers; for optical equipment and parts thereof, namely, safety eyeglass frames, prescription and non-prescription eyeglasses, impact resistant spectacles, microscopes, telescopes, binoculars and cameras; for weighing and measurement equipment, namely, scales, loadcells, transducers and indicators, wattmeters, micrometers, rulers, distance gauges; for signalling devices; for instruments and apparatus for performing control functions, namely, thermometers, fluid meters, pyknometers, pressure gauges, pressure meters, scales, speedometers; life-saving equipment, namely, eyeguards and safety visors, goggles, full face protection masks, safety helmets, glass-cover for display cases, magnetic compasses; for inspection glasses for other devices for recording, transmitting and reproducing sound and image, namely, computer monitors, computer screens, and protective windows for TV-sets; data displays for VCR's, video camera, CD radio cassette recorders