Abrasive blast cleaning machines; Abrasive wheels for power-operated grinders; Automatic sprayers for electrostatic painting; Combustion engine fuel nozzles; Compressor cleaning machines; Lapping machines; Machine parts, namely, nozzles which are parts of power-operated sprayers; Machines for blast cleaning a surface; Nozzles for particle blast cleaning machines and structural parts thereof; Particle blast cleaning machines and structural parts thereof; Powder coating spray guns; Power-operat...