Underwater Sporting Equipment-Namely, Breathing Gas Cylinders, Gas Manifolds, Gas Valves, Gas Hoses for Attachment to Underwater Breathing Gas Systems, First and Second Stage Regulators for Breathing Gas, Breathing Gas Control Yokes, Pressure Gauges, Depth Gauges, Compasses, Diving Suits, Boots, Mittens, and Jackets All Made from Elastomeric Wetsuit Material, Buoyancy Compensators, Life Vests, and Weight Belts; Commercial Diving Equipment-Namely, Underwater Masks, [Helmets, Protective Hats, Protective Hoods,] Breathing Gas Regulators, [Neck Bands, Helmet Liners and Gas Cylinders; Fire Fighting Equipment and Industrial Breathing Gas Equipment-Namely, Emergency Breathing Apparatus, Regulators, Masks and Manifolds]