Installation of photographic machines, equipment, products and devices; repair of photographic machines, equipment, products and devices; maintenance of photographic machines, equipment, products and devices; installation of photographic processing, developing and printing machines, equipment, products and devices; repair of photographic processing, developing and printing machines, equipment, products and devices; maintenance of photographic processing, developing and printing machines, equipment, products and devices; installation of graphics machines, equipment, products and devices; repair of graphics machines, equipment, products and devices; maintenance of graphics machines, equipment, products and devices; installation of healthcare machines, equipment, products and devices; repair of healthcare machines, equipment, products and devices; maintenance of healthcare machines, equipment, products and devices; installation of automatic teller machines (ATMs); repair of automatic teller machines (ATMs); maintenance of automatic teller machines (ATMs); installation of optometry machines, equipment, products and devices; repair of optometry machines, equipment, products and devices; maintenance of optometry machines, equipment, products and devices; installation of vending machines; repair of vending machines; maintenance of vending machines; installation of computer hardware; repair of computer hardware; maintenance of computer hardware; installation of office copier equipment, apparatus and devices; repair of office copier equipment, apparatus and devices; maintenance of office copier equipment, apparatus and devices; installation of ticketing machines, equipment, products and devices; repair of ticketing machines, equipment, products and devices; maintenance of ticketing machines, equipment, products and devices; installation of security machines, arches, equipment, products and devices; repair of security machines, arches, equipment, products and devices; maintenance of security machines, arches, equipment, products and devices