OPTICAL, PHOTOGRAPHY, AND CINEMATOGRAPHY INSTRUMENTS AND DEVICES
INSTRUMENTS AND APPARATUS FOR OPTICS, PHOTOGRAPHY, CINEMATOGRAPHY, MEASURING, CHECKING OR PRECISION; MEDICAL-SURGICAL INSTRUMENTS AND APPARATUS; CLOCKMAKING ARTICLES; MUSICAL INSTRUMENTS; THEIR PARTS AND ACCESSORIES 89 Optical, photographic, cinematographic, measuring, checking or precision instruments and apparatus; medical-surgical instruments and apparatus; their parts and accessories. 90 Clockmaking products and articles. 91 Musical products and instruments;...
