Power operated maintenance machines and equipment and structural parts and attachments therefore, namely, floor cleaning machines, street sweepers and sidewalk litter sweepers; vacuum cleaners; rider and walk- behind floor scrubbing machines; rider and walk-behind floor sweeping machines; floor scrubbing machines; floor cleaning machines; electric machines and apparatus for cleaning floors; electric sweepers; wet and dry vacuum cleaners; carpet cleaning machines, namely, carpet extractors; blowers, namely, power operated blowers; power-operated floor burnishers, floor buffers, portable carpet and upholstery spot cleaning machines; all surface cleaning machines, namely, power-operated floor and wall cleaning machines for scrubbing, sweeping, polishing, vacuuming, blowing, burnishing, and buffing surfaces including floors, carpets, and bathrooms for industrial and commercial use; machines for power operated sweeping, scrubbing, and scarifying, and parts and attachments therefor, namely, structural parts and attachments; cleaning machines that electrically activate water for the purpose of cleaning, sanitizing and disinfecting surfaces; cleaning mop heads specially adapted for power operated surface cleaning machines; floor cleaning robots with artificial intelligence; automatic floor scrubbers; a magnetic cleaning head system composed of machines for hands-free attachment and removal of cleaning brushes and pads that is sold as part of power operated, floor maintenance equipment, namely, scrubbers, sweepers, and burnishers; an on-board battery watering system that automatically fills batteries with water at the correct time in the charging cycle adapted for power operated floor maintenance equipment, namely, scrubbers, sweepers, burnishers, and extractors; machines that make, dispense and store surface cleaning solution by means of an electrochemical process; parts, components, and attachments for all the foregoing.