3D printing pens; 3D printers; Cleaning machines for aviation engines; Cleaning machines for gas turbine and combustion engines; Cleaning machines for oil and gas industrial machines; Cleaning machines for ponds; Cleaning machines for power generation engines; Machines for cleaning surfaces using high pressure water; Machines for banknote cleaning; Machines for blast cleaning a surface; Machines for udder cleaning and washing of dairy cows; Printing machines for commercial or industrial use; Printing machines for web products, particularly wallpaper, floor coverings and films, parts for the aforementioned machines and lines composed thereof, namely, gravure printing lines, screen printing lines, flexo printing lines and combinations of the aforementioned lines; Abrasive blast cleaning machines; Carpet cleaning machines; Carpet cleaning machines, namely, carpet extractors; Compressor cleaning machines; Diffusers used in machines for wastewater and clean water treatment; Dry-cleaning machines; Electric window cleaning machines; Floor cleaning machines; Mobile submergible cleaning machines for cleaning fish farming nets underwater; Non-abrasive blast cleaning machines; Nozzles for particle blast cleaning machines and structural parts thereof; Particle blast cleaning machines and structural parts thereof; Parts and attachments for weaving machines and for weaving looms, and weaving machine parts, namely, weft-yarn selecting units, warp-typing machines, hand knotting and splicing machines, cam motion machines for weaving looms, dobbies, Jacquard looms, Jacquard and dobby cads, selvedge and false selvedge apparatus for weaving looms, automatic exchange systems consisting primarily of warp and cloth beam and quick-style change loom harnesses, beams and beam flanges for weaving looms, reeds, reed cleaning and brushing machines, healds, heald frames, harnesses, temples, cones, tubes and pirns for weaving, pickers and lug straps, flexible rapier tapes, grippers for weaving looms, cutters for weaving machines, rapier machines, yarn feeders, weft feeders, yarn deflectors, warp stop motions, weft stop motions, weft accumulators, stands and creels for weaving loom accessories; Pillow cleaning machines; Pipe cleaning machines; Power-operated cleaning machines, namely, lances designed to mechanically remove scale and sludge from secondary side tubesheets in steam generators in nuclear power plants; Raw cotton cleaning machines; Sand cleaning machines; Self-contained, weather-protected mobile engine cleaning machines; Squeegee blades specially adapted for use with floor cleaning machines; Steam cleaning machines; Steam cleaning machines in the nature of steam mops; Three dimensional (3D) printers; UV printing machines for commercial or industrial use; Wet-cleaning washing machines