3D printers; 3D printing pens; Printing presses; Aircraft engine parts, namely, coils, manifolds and particulate filters; Clothes washing machines; Drain jetters; Electric compressors; Electrical juice extractors for fruit; Electrically-powered steam cleaning device comprising a hose and nozzle and a vapor-producing chamber that is attached to a water source; Filters and purifiers for machines, namely, filters and purifiers for removing contaminants from gases used in the semiconductor indust...