9013: Liquid crystal devices; lasers; other optical appl & instruments nes

901310: Telescopic sights for fitting to arms; periscopes; telescopes etc 901320: Lasers, other than laser diodes 901380: optical devices, appliances and instruments, nes, of this Chapter 901390: Parts and accessories of optical appliances and instruments, nes 9013: Liquid crystal devices; lasers; other optical appl & instruments nes