Adapter plugs; Cameras; Cinematographic cameras; Close-up lenses; Data processing equipment, namely, couplers; Educational apparatus, namely, manipulative blocks used as teaching aids for the visualization of math concepts; Electronic educational apparatus, namely, communication blocks that manipulate and convey information electronically based on their arrangement and are used for cognitive development in disciplines such as counting, spelling or quantitative; Hologram apparatus; Measurement standard devices for nanometrology, namely, measuring tools having a pattern in the micrometer or nanometer ranges; Measuring devices, namely, fluorometers; Measuring and control devices for air conditioning technology; Measuring apparatus, namely, clamp meters for measuring electricity; Microscopes; Semi-conductors; Teaching robots; Video recorders; Digital cameras for industrial use; Wire diameter measuring devices