Three dimensional (3D) printers; Extensions for power tools; Solar-powered electricity generators; Portable electric power generators; Electric power generators for indoor use; Household cleaning robots with artificial intelligence; Electronic feeder for wildlife; Household cleaning and laundry robots with artificial intelligence; Electric generators; Power jacks; Robotic lawnmowers; Vacuum cleaner hoses; Fans for motors and engines; Vacuum cleaners; Electronically and power-operated tools, n...