Cabinets for loudspeakers; Close-up lenses; Spirit levels; Range finders; Telemeters; Stands for photographic apparatus; Hygrometers; Magnifying glasses; Eyeglasses; Periscopes; Precision balances; Scientific and technical apparatus, namely, optical mirrors; Level measuring machines; Binoculars; Telescopes; Temperature indicators; Azimuth instruments; Headphones; Sighting telescopes for firearms