Scientific, electric, photographic, cinematographic apparatus and instruments and apparatus and instruments for analyzing, testing, controlling, cell counting, adjusting, sample handling and identification apparatus and instruments for use in the diary, food, beverage, microbiological, feed, grain, chemical and pharmaceutical industry and for use in laboratories, namely, spectrometers for determination of the content of fat, protein, lactose, acidity, total solids, brix and moisture, and flow...