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LENSES AND OPTICAL PRODUCTS-NAMELY, ROUGH LENS BLANKS, BIFOCAL BLANKS, BIFOCAL LENSES, OPHTHALMIC LENSES, EYEGLASS FRAMES AND MOUNTINGS, SPECTACLE FRAMES AND MOUNTINGS, GOGGLE FRAMES, GOGGLES, EYEGLASS SPRINGS, EYEGLASS STUDS, EYEGLASS GUARDS, SPECTACLE SPRINGS, SPECTACLE BRIDGES, EYEGLASS BRIDGES, OXFORD EYEGLASS FRAMES, OXFORD SPECTACLE FRAMES, TRIAL CASES, FRAMES, EYE TEST CHARTS, REFRACTORIES, TANGENT SCREEN, AND EYE EXERCISE DEVICES FOR CORRECTING BINOCULAR VISION