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Lightning arresters; voltage surge protectors; lightning rods; electrodes for ground; cables for ground; measuring instruments, namely, lightning surge measurers; lightning surge counters; electric field sensors; magnetic field sensors; electric field measuring antennas; meteorological instruments, namely, [ thermometers, barometers, hygrometers, rain gauges, ] [ anemometers, vanes and weather stations, ] meteorological radars, meteorological cameras