Measuring instruments, instruments, including those for science, nautical, topography, meteorology, industrial and laboratory use; non-medical thermometers, barometers, ammeters, voltmeters, humidity meters, test equipment, telescopes, periscopes, compasses; vehicle indicators; materials used in laboratories: microscopes, magnifiers, binoculars, experimental materials and devices (term considered too vague by the International Bureau - Rule 13 (2) (b) of the Regulations); devices for recordin...