Machines, namely vacuum pumps, oil-bath vacuum pumps; operating apparatus for machines, namely small pump sets for vacuum production, vacuum generators, flow vacuum generators, vacuum operated lifting systems, suction plates; parts of machines, engines and motors, namely control valves, air delivery valves (control), air switching valves (control), suction cups; filters for industrial purposes; air filters being part of machines; apparatus (machines) for filtering dust, water, fumes, gases, namely suction filters, oil-bath suction filters, siphon filters