[Class : 1] High Purity Gases, Special Purpose Gases, Special Gas Mixtures, For Industrial Purposes, Technical Purposes, Research Purposes, Science, Especially, Gases Being Detection, Calibration And Test Gases, And Protective And Shielding Gases, Reactive And Active Gases; Sanitary Gas Mixtures, With A Specific, Low Gas Content In A Base Gas, In Particular In The Base Gases Of Nitrogen, Air Or An Inert Gas For Use In Industry, Research And Science.[Class : 11] Taps And Regulating Valves For Gases, Adapted For Gas Cylinders And Gas Pipes, Included In This Class; Regulating And Safety Accessories For Gas Apparatus And Gas Pipes, Including Combined Regulating And Safety Apparatus For Gases For Supplying Gas To Consumers; All The Aforesaid Apparatus, In Particular For Use In Connection With Non Combustible Application Gases And Special Purpose Gases In Industry And Science.