Section 18 Optical, photographic, cinematographic, measuring, checking, precision, medical or surgical instruments and apparatus; clocks and watches; musical instruments; parts and accessories thereof 90 Optical, photographic, cinematographic, measuring, checking, precision, medical or surgical instruments and apparatus; parts and accessories thereof 90 11 Compound optical microscopes,incl. photomicrography,..... 90 11 10 Sterescopic microscopes 90 11 10 00 Sterescopic microscopes Commodity Code Description 90 11 10 00 000 Sterescopic microscopes