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 Surgicla Instruments and Apparatus; parts and AccesoriesThereof. 90 18 Instruments and appliances used in medical, surgical, dental or veterinary sciences, including scintigraphic apparatus, other electromedical apparatus and sight-testing instruments 90 18 12 ULTRASONIC SCANNING APPARATUS Commodity Code Description 90 18 12 00 ULTRASONIC SCANNING APPARATUS