Spyglasses; Calibration devices for calibrating optical emission spectrometers; Calibration devices for calibrating optical emission spectrometers, atomic absorption spectrometers and X-ray apparatus, other than for medical use; Laser measuring systems; Lasers for industrial use; Lasers, not for medical purposes; Measuring apparatus, namely, laser distance meters; Night vision goggles; Optical filters; Optical lens sights; Protective body armor, namely, ballistic, bullet, blast, slash and sta...