Black & Decker? was founded in 1910 as a small machine shop in Baltimore; in 1917 the company invented and obtained a patent for the portable electric drill. Today the company is an American manufacturer of power tools and accessories, hardware and home improvement products; branded household products and home appliances are marketed by a division of Spectrum Brands, a consumer products corporation based in Wisconsin. The home appliance line includes tabletop ultrasonic humidifiers, HEPA tower air cleaners; ultrasonic travel humidifiers; cordless hand vacuums; steam irons; the Dustbuster?; the ScumBuster Xtreme; the Pivot Vac? and more. Power and hand tools are marketed under the Black & Decker? Stanley brand and include standard screwdriver sets, adjustable wrenches, retractable tape measures, hammers, pliers, tape rules, saws, slip joint pliers, ratcheting screwdrivers, screwdriver sets, plier sets and more.