Classification Information
Binoculars; Periscopes; Telescopes; Body-tubes for telescopes; Fibre optic periscopes; Lenses for telescopes; Reflectors for telescopes; Zenith telescopes
Electrical and Scientific ApparatusBinoculars; Periscopes; Telescopes; Body-tubes for telescopes; Fibre optic periscopes; Lenses for telescopes; Reflectors for telescopes; Zenith telescopes
Electrical and Scientific Apparatus