Shielding gases for welding

Teaching and training services in the field of protective gas welding; services in this class in connection with the holding of instructional courses at educational institutes, trade schools, apprentice schools, engineering schools, and teaching institutions, for welding technology, and services in this class in connection with the production and distribution of instructional material for such training courses.

The provision of specialist advice, opinions and studies on gas welding; conducting of tests in all fields of gas welding; carrying out research projects dealing with the development of protective gas welding processes and methods, and with the working conditions of welders; development of processes for gas welding; design of apparatus for gas welding

Services in connection with the installation, assembly, repair, maintenance and servicing of gas supply plants and gas welding equipment; welding services (including gas welding services); the leasing and loan of gas supply equipment for gas welding

Gas control equipment (including liquefied gas control equipment) being machines or parts of machines included in this class, such as pressure regulators, pressure reducers, pressure release valves, stop valves, non-return valves, regulating valves, liquid gas pumps, gas-mixing equipment, and gas-mixing cocks

Gas storage containers, standing tanks for liquefied gases, buffer containers; gas pressure bottles; metal piping; all the foregoing being goods included in this Class

Chemical products for industrial and scientific use, protective gases for welding, scientific and industrial purposes, in particular hydrocarbons, hydrocarbon compounds, oxygen, hydrogen, nitrogen, carbon-dioxide, rare gases as well as mixtures of such gases and compounds

A combination of argon gas an extract from the air and carbon dioxide for use principally in welding