Classification Information
Range finders; Microscopes; Magnifying glasses; Protective eye pieces; Periscopes; Astronomical spectrographs; Binoculars; Telescopes; Sighting telescopes for firearms
Electrical and Scientific ApparatusRange finders; Microscopes; Magnifying glasses; Protective eye pieces; Periscopes; Astronomical spectrographs; Binoculars; Telescopes; Sighting telescopes for firearms
Electrical and Scientific Apparatus