| Class | Class Name |
|---|---|
| 37 | installation and maintenance services relating to computers |
| 37 | installation and maintenance services relating to telecommunication systems |
| 37 | installation and repair of air conditioning apparatus |
| 37 | installation and repair of air conditioning apparatus and equipment |
| 37 | installation and repair of air-conditioning apparatus |
| 37 | installation and repair of alarms, bells and buzzers |
| 37 | installation and repair of anti-theft and fire alarms |
| 37 | installation and repair of anti-theft car alarm systems |
| 37 | installation and repair of computer hardware and telecommunication apparatus |
| 37 | installation and repair of computer hardware, telephone systems, routers, junction boxes and switches |
| 37 | installation and repair of computers |
| 37 | installation and repair of electric appliances and equipment |
| 37 | installation and repair of electric flat irons |
| 37 | installation and repair of electrical communication equipment |
| 37 | installation and repair of electrical, electronic, telecommunications, radio, facsimile and telephonic apparatus and instruments |
| 37 | installation and repair of fire alarms |
| 37 | installation and repair of flood protection equipment |
| 37 | installation and repair of fluorescent screen |
| 37 | installation and repair of freezers |
| 37 | installation and repair of heat supply equipment |
| 37 | installation and repair of heating equipment, air conditioning apparatus, electric appliances, furnaces and freezing equipment |
| 37 | installation and repair of in-house audio/video systems |
| 37 | installation and repair of instruments and machines |
| 37 | installation and repair of lifts |
| 37 | installation and repair of lighting apparatus and installations |
| 37 | installation and repair of loading and unloading apparatus and equipment |
| 37 | installation and repair of machines |
| 37 | installation and repair of medical apparatus |
| 37 | installation and repair of pumps |
| 37 | installation and repair of recreational and sports apparatus |
| 37 | installation and repair of sanitary equipment |
| 37 | installation and repair of smoke detectors |
| 37 | installation and repair of telecommunication apparatus |
| 37 | installation and repair of telecommunication systems |
| 37 | installation and repair of telephone and telecommunication apparatus |
| 37 | installation and repair of telephones |
| 37 | installation and repair of telephones and communication equipment |
| 37 | installation and repair of telephones and telecommunication equipment |
| 37 | installation and repair of televisions |
| 37 | installation and repair of vacuum cleaners, electric carpet beaters, electric polishing machines and circulating pumps |
| 37 | installation and repair of washing machines, washing-drying machines, dishwashers, electric coffee mills, electric mixers and electric grinders |
| 37 | installation and repair of water distribution systems, water treatment systems and irrigation systems |
| 37 | installation and repair of water distribution, water treatment and irrigation systems |
| 37 | installation and repair of water heaters, bath tubs, removable mats or covers for sinks, bathroom furniture and kitchen furniture |
| 37 | installation and repair of watering installations, pipelines and pumps |
| 37 | installation and repair services relating to telecommunication systems |
| 37 | installation and/or repair of facilities for bathroom |
| 37 | installation, maintenance and repair of computer hardware |
| 37 | installation, maintenance and repair of electric motor apparatus and instrument |
| 37 | installation, maintenance and repair of gas and electric appliances |
