Machines, apparatus and installations for the mechanical handling of materials, namely, screw conveyors including screws without mechanical central shaft parts; machines, apparatus and installations for municipal water supply plants and water purifications plants, namely, screw conveyors including screws without a mechanical central shaft; waste compacting machines; loading machines for loading compressed material directly into containers; component parts and fittings for the aforesaid goods

machines, apparatus, and installations for the mechanical handling of materials; namely, conveyors utilizing a screw with or without a shaft, classifiers; namely, sieve separating machines and parts therefor; namely, screens for separating particles and solid pollutants from liquids, conveyors, machines for dewatering screenings and sediments separated from waste water and industrial process liquids, electric motors for machines