Belongs to trademark class 37: 3706 Installation and repair of machinery and electrical equipment (1) Installation and repair of electrical equipment 370003, Installation, maintenance and repair of office machines and equipment 370014, Installation and repair of air-conditioning equipment Repair 370028, Installation of kitchen equipment 370035, Installation and repair of irrigation equipment 370053, Installation, maintenance and repair of machinery 370058, Installation and repair of refrigeration equipment 370078, Installation, maintenance and repair of computer hardware 370116, Repair of worn or partially damaged engines 370118, Repair of worn or partially damaged machines 370119, refilling of toner cartridges 370130※ Installation and repair of sanitary equipment C370003, installation and repair of bathroom equipment C370004, installation and repair of lighting equipment C370005 (2) Clearing interference from electronic equipment 370117 ( 3) ※Installation and repair of medical devices C370002 Note: The services between the various parts of this similar group are not similar.