Lightning conductors; gasometers; air analysis apparatus; altimeters; fire extinguishers; X-ray tubes not for medical purposes; eyeglasses; level indicator; slides [photography]; height measuring instruments; acid hydrometers; revolution counters; audiovisual teaching apparatus; electric loss indicators; optical apparatus and instruments; calorimeters; antenna parameter measuring apparatus; coordinate measuring instruments; carbon dioxide detectors; passive infrared detectors; radar detectors; electromagnetic measuring detectors; logs [measuring instruments]; optical lenses; insulation resistance meters; resistance measuring instruments; dial gauges; micrometers; slide calipers; thermal imaging cameras; infrared camera; steering apparatus, automatic, for vehicles; azimuth instruments; accelerometers; teaching apparatus; spirit levels; temperature indicator labels, not for medical purposes; surveying instruments; sounding apparatus and machines; apparatus for analysing gases; actinometers; stroboscopes; barometers; anemometers; meteorological balloons; marine compasses; distance recording apparatus; surveyors' levels; water level indicators; plumb lines; levelling staffs [surveying instruments]; range finders; levels [instruments for determining the horizontal]; infrared detectors; salinometers; flowmeters; theodolites; measuring devices, electric; soil sampling equipment, namely, tubular liners or tubular sleeves; rods [surveying instruments]; exhaust gas temperature gauges; clinometers; gradient indicators; mercury levels; meteorological instruments; distance measuring apparatus; levelling instruments; observation instruments; hygrometers; wavemeters; ergometers; material testing instruments and machines; measuring instruments; testing apparatus not for medical purposes; pyrometers; thermometers, not for medical purposes; saccharometers; sulphitometers; speed indicators; temperature indicators; tachometers; viscosimeters; densitometers; dosage dispensers; dosimeters; decompression chambers; diagnostic apparatus, not for medical purposes; measuring spoons; wind pressure gauges; high-frequency apparatus; inductors [electricity]; ohmmeters; voltmeters; electricity meter; electrical test apparatus; voltage stabilizers; acidimeters for batteries; hydrometers; alidades; food analysis apparatus; telescopes; speed checking apparatus for vehicles; endoscopy cameras for industrial purposes; laser level measuring apparatus; motion detectors; spectrometers; interfaces for detectors; echo sounding devices; electrotechnical vibration meters; screw-thread measuring machines and instruments; test adapters for testing printed circuit boards; test pins for testing printed circuit boards; testing apparatus for testing printed circuit boards; infrared thermometers, not for medical purposes; infrared detection apparatus; remote control telemetering machines and instruments; digital torque gauges; hand-held security wands; photometers; semi-conductors; optical fibres [light conducting filaments]; alcoholmeters; pressure indicator plugs for valves; boiler control instruments; metronomes; densimeters; detectors; measuring apparatus; balancing apparatus; rods for water diviners; gas testing instruments; surveying apparatus and instruments; speedometer tester; manometers; pressure measuring apparatus; pressure indicators; petrol gauges; gas meters; ammeters; automatic indicators of low pressure in vehicle tires; slope indicators; galvanometers; meters; dynamometers; water meters; lasers for measuring; cameras [photography]; semiconductor testing apparatus; circuit testers; voltage testers; dust measuring apparatus; battery testers; gas flow monitors; electronic equipment for mine detection; directional compasses; electrodes.;