plugboards; plug adapters; electrical outlet plates; power strips with movable sockets; chargers for smartphones; chargers for cell phones; cell phone battery chargers; USB chargers; battery chargers for tablet computers; chargers for batteries; mains chargers; chargers for electric accumulators; converters for electric plugs; electric plugs; electric outlets; electric socket outlets; electric connector sockets; electric power supply sockets; electrical plugs and sockets; electric sockets