3D printers; Automatic floor scrubbers; Automatic stamping machines; Ball transfer table units for use in carrier device, conveyor system or positioning system; Barking machines; Beverage preparation machines, electromechanical; Blades for electric food processors; Bread cutting machines; Brushes for vacuum cleaners; Drying machines and lines for web products, parts for the aforementioned machines, particularly recirculated air driers, inert gas driers, infrared driers, tempering machines and lines for web products, parts for the aforementioned lines, particularly calendars, low-pressure presses, high-pressure presses, double-belt presses, embossing and laminating machines for the production of hot and cold laminates, floor coverings, parts for the aforementioned machines and lines composed thereof; Electric food grinders for commercial, industrial or domestic use; Electrical and electronic apparatus and equipment all for use in generating energy obtained from alternative energy sources; Electrically-powered kitchen appliance for dicing, mincing, slicing and chopping food; Machines for use in the hairdressing industry, namely, automated battery-operated and electrically-powered appliances that cut, fold and dispense foil; Pond and water garden aeration systems comprising water pumps, air compressors, air blowers and a finned wheel for pressurizing and aerating ponds and aquariums; Power tools, namely, drills, routers, circular saws; Printing machines for web products, particularly wallpaper, floor coverings and films, parts for the aforementioned machines and lines composed thereof, namely, gravure printing lines, screen printing lines, flexo printing lines and combinations of the aforementioned lines; Semiconductor substrates manufacturing machines; Semiconductor wafer processing equipment; Sun-tracking and daylighting system comprised of a solar-powered mechanism for sensing the position of the sun, automatically tracking the sun and then repositioning a mirror to direct the sunlight into courtyards, outdoor spaces and open-air spaces within building structures, and/or the inside of houses or buildings