Cartridges sold filled with chemical flavorings in liquid form for electronic cigarettes; Chemical flavorings in liquid form used to refill electronic cigarette cartridges; Electronic cigarette liquid (e-liquid) comprised of flavorings in liquid form, other than essential oils, used to refill electronic cigarette cartridges; Electronic cigarettes; Smokeless cigarette vaporizer pipe; Smokers' oral vaporizer refill cartridges sold empty