Safety clothing, footwear and headgear; protective clothing, footwear, and headgear; eyewear; protective eyewear; safety equipment for workers in this class; helmets; earplugs; Industrial safety instruments for the protection of workmen against accident; Mechanical safety apparatus; Safety apparatus (for the prevention of accident or injury); Personal protection devices (other than firearms or side arms); Protection devices for personal use against accidents; Protection devices for personal use against injury