37 Installation, cleaning, repair and maintenance in connection with the following goods, namely, measuring, signalling, inspecting, life-saving and teaching apparatus and teaching instruments, measuring apparatus and measuring instruments; installation, cleaning, repair and maintenance in connection with the following goods, namely, apparatus for recording, transmitting or reproducing sound or images, transmitters and receivers for communication purposes, network communication apparatus; installation, cleaning, repair and maintenance in connection with the following goods, namely, network management control apparatus, data communications apparatus, recorded content, databases, media content and software; installation, cleaning, repair and maintenance in connection with the following goods, namely, communication, networking and social networking software, data and file management and database software, media and publishing software; installation, cleaning, repair and maintenance in connection with the following goods, namely, office and business applications, artificial intelligence and machine learning software, software for monitoring, analysing, controlling and running physical world operations, system and system support software, and firmware; installation, cleaning, repair and maintenance in connection with the following goods, namely, virtual and augmented reality software, web application and server software, mobile apps, and information technology, audiovisual, multimedia and photographic apparatus; installation, cleaning, repair and maintenance in connection with the following goods, namely, communications equipment, data storage devices and data storage media, replicating apparatus, data processing apparatus, and data processing equipment and accessories, both electrical and mechanical; installation, cleaning, repair and maintenance in connection with the following goods, namely, audio, visual and photographic apparatus, signal cables for IT, AV and telecommunication, audio vision and telecommunications, magnets, magnetisers and demagnetisers; installation, cleaning, repair and maintenance in connection with the following goods, namely, scientific and laboratory devices for treatment using electricity; installation, cleaning, repair and maintenance in connection with the following goods, namely, apparatus, instruments and cables for electricity, optical devices, enhancers and correctors; installation, cleaning, repair and maintenance in connection with the following goods, namely, safety, security, protection and signalling devices, diving equipment, and navigation, guidance, tracking, targeting and map making devices; installation, cleaning, repair and maintenance in connection with the following goods, namely, measuring, detecting, monitoring and controlling devices, scientific research and laboratory apparatus, educational apparatus and simulators, voltage regulators; installation, cleaning, repair and maintenance in connection with the following goods, namely, apparatus and instruments for conducting, switching, transforming, accumulating, regulating and controlling electricity; installation, cleaning, repair and maintenance in connection with the following goods, namely, controllers, transistor converters, power converters, in particular of a compact design, in particular for rail vehicles and vehicles for local public transport; installation, repair and maintenance in connection with the following goods, namely, electrotechnical and electromechanical components, voltage converters, electrical transducers, direct current converters, rectifiers, current converters and electric inverters; installation, cleaning, repair and maintenance in connection with the following goods, namely, idle converters, high-voltage transformers, electric measuring, signalling and inspecting apparatus and inspecting instruments; installation, cleaning, repair and maintenance in connection with the following goods, namely, commutators, switches, electric, commutators for electrical components, microswitches, pressure switches, tumbler switches, lever switches; installation, repair and maintenance in connection with the following goods, namely, switching apparatus, relays, electrical switchgear and contactors, sensors, resistors, potentiometers, diodes, electrical and electronic components; installation, repair and maintenance in connection with the following goods, namely, electrical and electronic components, parts and assemblies for electric vehicles and rail vehicles; installation, cleaning, repair and maintenance in connection with the following goods, namely, fuse boxes, fuses, grounding boxes, branch boxes, terminals, sleeves for electric cables, end caps and covers for electrical connectors, clamps for cables, plug-in connectors, plug-in connectors for electrical and electronic components; installation, cleaning, repair and maintenance in connection with the following goods, namely, electric plugs, sockets and other contacts relating to electric connectors, contacts, electric, cable connectors, electrical terminal connectors; installation, cleaning, repair and maintenance in connection with the following goods, namely, electrical control boards, protective hoses and dust covers for electrical apparatus and connectors, sirens, sirens for vehicles, radio beacons, beacon lights, warning lights, safety beacons; installation, cleaning, repair and maintenance in connection with the following goods, namely, devices and apparatus for collecting, receiving, processing, displaying and representing data and information, switching, monitoring, control and regulating apparatus and devices, electric batteries and accumulators; installation, cleaning, repair and maintenance in connection with the following goods, namely, parts and accessories for electric batteries and accumulators, chargers for electric accumulators and batteries, commutators, energy supply installations, battery chargers, and apparatus and systems for the distribution of energy; installation, cleaning, repair and maintenance in connection with the following goods, namely, electrical, electronic, computer-based and processor-based controllers and control systems, power storage devices, programmable electronic controllers, panel meters, measuring and control apparatus, electronic controllers, fuse indicators, measuring devices, electric; installation, cleaning, repair and maintenance in connection with the following goods, namely, instruments for surveying physical data, digital electric measuring apparatus, electronic instruments for measuring electrical parameters, measuring apparatus, electronic measuring apparatus, digital panel meters; installation, cleaning, repair and maintenance in connection with the following goods, namely, electrical controls, computer software for use in remote meter reading, computer software for use in remote meter monitoring, shaft identification gauges, measuring instruments for power supply systems; installation, cleaning, repair and maintenance in connection with the following goods, namely, transducers, electronic instruments for measuring process parameters, digital controllers, electrical voltage measurement instruments, measuring instruments for determining the values of electrical parameters, programmable controllers and measuring apparatus; installation, cleaning, repair and maintenance in connection with the following goods, namely, virtual reality software, data carriers for computers having software recorded thereon, logic master modules relating to software, industrial process control software, computer-stored software, software-programmable microprocessors, computer buses, computer add-on circuit boards, computer connection assemblies; installation, cleaning, repair and maintenance in connection with the following goods, namely, computer programs for use with structured systems analysis, oscilloscope attachments for converting computers into transient recorders, computer programs recorded on circuit boards, computer programs for scientific data analysis