37 Technical support services, namely, troubleshooting in the nature of repair of medical equipment, namely, wheelchairs; installation, maintenance and repair of medical equipment, namely, wheelchairs, including replacement of component parts for wheelchairs if necessary as part of the maintenance and repair services; vehicle breakdown repair services for wheelchairs; vehicle repair and maintenance services for wheelchairs; repair of medical equipment, namely, wheelchairs; repair of medical machines and apparatus, namely, wheelchairs