Thermometers, not for medical purposes; barometers; ammeters; voltmeters; hygrometers; computer-controlled apparatus for testing and measuring radio frequency signals, concentrations of gas and liquids and audio signals; telescopes; periscopes; directional compasses; speed indicators; microscopes; magnifying glasses; stills for scientific purposes; binoculars; ovens and furnaces for laboratory experiments; apparatus for recording, transmission or reproduction of sound or images; cameras; phot...

Dietary and nutritional supplements