7 Power-operated mechanical feeding, supplying and handling machines, in particular vibratory bowl feeders, vibratory linear feeders, air cushion feeders, sorting machines with air supplying apparatus with lines for arranging the small parts by means of airflow or vacuum, conveyors with camera for arranging, sorting and controlling the small parts, conveyor bands, feeding and supply bowls, spring feeding machines, disentangling machines, reels, refilling machines, namely, refilling bunkers, vibratory refilling bunkers, feeders, slides, chutes and pouring machines; parts of the aforementioned goods, namely, air jets, air jet holders, sensor holders for light and fork-light barriers, covers for supply bowls, soundproof hoods for vibratory bowl feeders, foundations for vibratory bowl feeders and linear feeders