Submarines; Aircraft carriers; Push scooters; Aeroplanes; Tires; Motor cars; Self-driving robots for delivery; Solid tires for vehicle wheels; Casters for shopping trolleys; Autonomous cars; Hand trucks for transporting and positioning flat-shaped objects such as all types of doors, panels, partitions, countertops, table tops, sheet goods, ladders, displays, trusses, gates, fences; Folding bikes; Electric bicycles; Delivery drones