Amplifiers; Angle gauges; Binoculars; Directional compasses; Gun scopes; Laser rangefinders; Lenses for telescopes; Magnifying glasses; Magnifying lenses; Microscopes; Microscopes and parts thereof; Night vision goggles; Optical lenses; Range finders for cameras; Rangefinders for golf; Rifle scopes; Riflescopes; Spotting scopes; Surveying compass needles; Surveying machines and instruments; Telescopes; Telescopic sights; Tripods; Zenith telescopes

MEASURING JUGS AND CALIBRATED MEASURING CUPS