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, PHOTOGRAGHIC, CINEMATOGRAPHIC, MEASURING, CHECKING, PRECISION, MEDICAL OR SURGICAL INSTRUMENTS AND APPARATUS; CLOCKS AND WATCHES; MUSICAL INSTRUMENTS; PARTS AND ACCESSORIES THEREOF 90 11 COMPOUND OPTICAL MICROSCOPES, INCLUDING THOSE FOR PHOTOMICROGRAPHY Commodity Code Description 90 11 10 STEREOSCOPIC MICROSCOPES 90 11 20 OTH.MICROSCOPES,FOR PHOTOMICROGRAPHY,CINE-PHOTOMICROGRAPHY/MICROPROJECTION 90 11 80 OTHER MICROSCOPES 90 11 90 PARTS AND ACCESSORIES FOR COMPOUND OPTICAL MICROSCOPES, INCL. THOSE FOR ..