37 Installation, repair, troubleshooting and maintenance services of electronic, electrical and computer devices, apparatus and instruments for checking, regulation, diagnosis not for medical use, simulation, signaling, control; installation, repair, troubleshooting and maintenance services of equipment and apparatus for data input, processing and transmission; installation, repair, troubleshooting and maintenance services of industrial microcomputers; installation, repair, troubleshooting and maintenance services of computers; installation, repair, troubleshooting and maintenance services of computer peripheral devices; installation, repair, troubleshooting and maintenance services of screens and monitors for computers and for driving and control positions for land vehicles, ships and aircraft; installation, repair, troubleshooting and maintenance services of integrated circuit cards; installation, repair, troubleshooting and maintenance services of integrated circuits; installation, repair, troubleshooting and maintenance services of printed circuits; installation, repair, troubleshooting and maintenance services of electronic boards and casings; installation, repair, troubleshooting and maintenance services of signal acquisition and communication cards for microcomputers; installation, repair, troubleshooting and maintenance services of central processing unit cards; installation, repair, troubleshooting and maintenance services of aircraft flight computers; installation, repair, troubleshooting and maintenance services of navigation apparatus, namely, on-board computers for land vehicles, ships and aircraft; installation, repair, troubleshooting and maintenance services of satellite navigation systems for land vehicles, ships and aircraft; installation, repair, troubleshooting and maintenance services of tracking systems and devices for land vehicles, ships and aircraft by satellite and radio antennae; installation, repair, troubleshooting and maintenance services of apparatus and devices for checking, controlling and regulating electric current and electrical circuits for land vehicles, ships and aircraft, namely, electric batteries and accumulators, on-board battery chargers, voltage converters and electric transformers, current rectifiers; installation, repair, troubleshooting and maintenance services of inverters, switches and buttons, power supply cards and current transformers; installation, repair, troubleshooting and maintenance services of electric locks and door-opening control devices for land vehicles, ships and aircraft; installation, repair, troubleshooting and maintenance services of apparatus and devices for controlling, regulating and controlling heating and air-conditioning systems for land vehicles, ships and aircraft; installation, repair, troubleshooting and maintenance services of diagnostics and analysis apparatus and instruments other than for medical purposes, namely, automotive testing equipment in the nature of handheld diagnostic scanners; installation, repair, troubleshooting and maintenance services of mechanical and electronic equipment, apparatus and instruments, namely, automotive testing equipment in the nature of handheld diagnostic scanners for technical monitoring and technical diagnostics for land vehicles, ships and aircraft; installation, repair, troubleshooting and maintenance services of equipment, apparatus and instruments specifically equipment that detects and measures failures and degradation in performance of land vehicles, ships and aircraft; installation, repair, troubleshooting and maintenance services of test, testing and measurement benches, namely, electronic machines for measuring weight for land vehicles, ships and aircraft; temperature measuring sensors and apparatus for land vehicles, ships and aircraft; installation, repair, troubleshooting and maintenance services of gas testing instruments, namely, exhaust gas analysis apparatus and instruments for land vehicles, ships and aircraft; installation, repair, troubleshooting and maintenance services of lighting apparatus, namely, apparatus and instruments for regulating land vehicle headlights; installation, repair, troubleshooting and maintenance services of monitoring apparatus and instruments for controlling and adjusting the suspension geometry and balance of land vehicle wheels; installation, repair, troubleshooting and maintenance services of endoscopes for non-medical use; oscilloscopes; installation, repair, troubleshooting and maintenance services of electric, electronic and computer measuring and testing apparatus and instruments for land vehicles, ships and aircraft; installation, repair, troubleshooting and maintenance services of sensors, calculators, indicators and recorders of speed, distance and consumption for land vehicles, ships and aircraft; installation, repair, troubleshooting and maintenance services of speed governors, regulators and electronic controllers for land vehicles, ships and aircraft; installation, repair, troubleshooting and maintenance services of tachograph discs and digital tachographs, namely, speed, distance and driver's activities indicators for land vehicles; installation, repair, troubleshooting and maintenance services of apparatus for recording, transmitting and reproducing sound and images; installation, repair, troubleshooting and maintenance services of DVD players and recorders; installation, repair, troubleshooting and maintenance services of sound amplifiers; installation, repair, troubleshooting and maintenance services of loudspeakers; installation, repair, troubleshooting and maintenance services of apparatus for transmission and reception of sound and images; installation, repair, troubleshooting and maintenance services of amplifiers and electronic cards for the amplification of electric and electronic signals for land vehicles, ships and aircraft; installation, repair, troubleshooting and maintenance services of wireless devices and computer systems for transmitting and exchanging data between a fixed station and a land vehicle, a ship and a moving aircraft; installation, repair, troubleshooting and maintenance services of wireless devices and computer systems for transmitting and exchanging data within a land vehicle, a ship and a moving aircraft; installation, repair, troubleshooting and maintenance services of electronic apparatus and computer hardware systems for broadcasting, transmitting and receiving data and electrical and electronic signals for land vehicles, ships and aircraft; installation, repair, troubleshooting and maintenance services of telecommunication apparatus; installation, repair, troubleshooting and maintenance services of automatic power distribution machines; installation, repair, troubleshooting and maintenance services for land vehicles, ships, and aircraft; repair, troubleshooting and maintenance services of vehicles and apparatus for locomotion by land, air and water; installation, repair, troubleshooting and maintenance services of steering wheels and steering columns for land vehicles; installation, repair, troubleshooting and maintenance services of dashboards for land vehicles and aircraft