Measuring, signalling, checking, life-saving and teaching apparatus and instruments, namely, measuring tapes, fluorometers; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity, namely, transformers, differential switches; measuring apparatus, namely, distance measuring apparatus; photovoltaic solar modules for production of electricity; accumulators, in particular being single batteries and power packs; electric accumulators; batteries, electric, for vehicles; battery jars; battery boxes; ammeters; analysers for analysing gases; anodes; anode batteries; distance measuring apparatus; apparatus for measuring the thickness of skins; oxygen transvasing apparatus being oxygen regulators; steering apparatus, automatic, for vehicles being cruise controls for vehicles; electricity limiters; observation instruments, namely, telescopes; infrared detectors; metal detectors; smoke detectors; diagnostic apparatus, namely, x-ray apparatus, not for medical purposes; fuse wire; revolution counters being tachometers; electrical inductor coils; electricity transformers; electric wires; electric cables; capacitors; electrolysers; electromagnetic coils; electronic notice boards; anti-interference devices for electricity, namely, interferometers; remote control apparatus for televisions; galvanic cells; galvanic batteries; gas testing instruments; gasometers; speed indicators; speed checking apparatus for vehicles being odometers; grids for batteries; semiconductors; electricity terminal boxes and blocks; electric collectors being photovoltaic also including a solar thermal collector sold as a unit; capacitors; electric contacts; electric couplings; laboratory trays; chargers for electric batteries; air analysis apparatus; blank disks, magnetic; solenoid valves being electromagnetic switches; insulators for electricity mains and cables; material testing instruments and machines, namely, electronic and optical communications instruments and components, namely, communication testers for testing communication links; navigation apparatus for vehicles being on-board computers; electrical navigational instruments; plates for batteries; record players; relays, electric; acidimeters for batteries; switchboards; commutators; switches, electric; electric apparatus for commutation being commutators; integrated circuits; electric distribution consoles; electricity control panels; silicon wafer slices; simulators for the steering and control of vehicles; sirens; solar batteries; battery chargers; voltmeters; voltage regulators for vehicles; electric coils; rectifiers; electricity conduits; electrified conductor rails for mounting spot lights; circuit closers; ammeters; circuit breakers; electric loss indicators; converters, electric; inverters electricity; batteries for pocketlamps; voltage surge protectors; electric monitoring apparatus, namely, monitoring devices for monitoring battery performance characteristics; junction sleeves for electric cables; electricity connectors; plugboards in the nature of circuit boards; electric cell switches; batteries for lighting; batteries; blank smart cards being blank integrated circuit cards; measuring apparatus and instruments, namely, distance measuring apparatus; signalling apparatus and instruments, namely, signal processors; checking being supervision apparatus and instruments, namely, monitoring devices for monitoring battery performance characteristics; teaching apparatus, namely, computers and computer monitors