Optics and optical instruments. Microscopes. Slides. Part 2. Quality of material, standards of finish and mode of packaging. Technical Corrigendum 1— 1 стр.
37.020 Optical. Including microscopes, telescopes, binoculars, optical materials, optical components and optical systems / Оптическое оборудование. Включая микроскопы, телескопы и т.д.
