[Class : 11] Gas And Steam Generating Apparatus; Gas Separating And Gas Purifying Apparatus; Gas Regulating, Mixing And Distributing Apparatus; Apparatus And Equipment For Generating Ozone, For Delivering Ozone, And For Treatment With Ozone; Ozone Generators And Principal Components Therefor; Apparatus, Equipment And Devices For Dissolving Ozone In Aqueous Solutions, For Insertion Into Process Media, And For Applying Ozone To Product Surfaces, None Of The Aforesaid Applications For Medical Purposes; Evaporators And Heat Exchangers, Not Parts Of Machines; Regulating And Safety Accessories For Gas Apparatus And Gas Pipes; Gas Withdrawal, Mixing And Regulating Apparatus For Preparing An Available Gas Stock For Use, Consisting Predominantly Of A Combination Of Valves And Measuring, Regulating And Adjusting Elements; Apparatus For Preparing And Processing Ozone Containing Gases.