Search Results for: Lenses for projectors
including those for photomicro-graphy, cinephotomicrography or microprojection microscopes other than optical microscopes; diffraction apparatus liquid crystal devices not constituting articles provided for more specifically in other headings; lasers, other than laser diodes; other optical appliances
example, drafting machines, pantographs, protractors, drawing sets, slide rules, disc calculators); instruments for measuring length, for use in the hand (for example, measuring rods and tapes, micrometers, callipers), not specified or included elsewhere in this chapter instruments and appliances used...
https://www.seair.co.in/custom-duty/optical-photographic-cinematographic-measuring-checking-chapter-head-90.aspx