Air powered tools, namely, drills; Electric scissor sharpeners; Permanent magnet motors; Portable laser engraving machines; Power-operated potters' wheels; Power-operated tools, namely, drill hammers; Solar-powered electricity generators; Soldering apparatus, electric; 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 spac...