7 Machines and Parts Therefore for Use in the Plastics Production and Processing Industry-Namely, Loaders, Coloring Loaders, Distribution Bins, Metering Blenders, Intermixers, Granulators, Pelletizers, Container Tilters, Drum Tumblers, Replaceable Hoppers Being Parts of Machines for Dispensing Materials, Vacuum and Pressurized Railcar Unloaders, Pipe Hauloffs, Air Filters and Liquid Color Injectors