Agitators; sieves and screens (machines or parts of machines); mechanical vibrators; motor vibrators with electric motor; vibrating machines in general; machines for vibration-polishing mechanical pieces; machines for vibration-cleaning filters of any kind for liquids, including those for the chemical industry; vibration packaging machines for: sheets, paper, printed matters and stationery items; vibrators for laundry machines; vibrators for aging cast iron in foundries; vibrators for drying-dewatering liquid masses, such as chocolate, malt and soap; planar roller vibrators and drivers in general for laying floor tiles; compactors; vibrating mixers; sorters (machines); machines for vibration emptying of reservoirs and tanks; machines for vibration-canalizing in ducts loose, granulated, powdered materials or pastes such as: sand, gravel, cement, concrete, gun powder, flour, dyes, feeds, cereals, plastic material scraps, fertilizers, salt; machines for vibration-transferring and/or conveying loose, granulated, powdered materials or pastes such as: sand, gravel, cement, concrete, gun powder, flour, dyes, feeds, cereals, plastic material scraps, fertilizers, salt; machines for vibration-detaching masses, such as: foundry sands, also in moulds or shell moulds, forages and products in general stored in silo bins; electronic regulators of the vibration frequency, frequency converters