[Class : 1] Gas; Gas For Industrial Use And For Industrial Purposes Gaseous Hydrocarbon Compounds Gaseous Hydrocarbons Gases For Use In Burning Gasoline Additives And Gasoline (Detergent Additives).[Class : 4] Petroleum Petroleum Gas Industrial Oils And Greases Lubricants Dust Absorbing, Wetting And Binding Compositions Fuels (Including Motor Spirit) And Illuminants Candles, Wicks.[Class : 16] Paper, Cardboard And Goods Made From These Materials Not Included In Other Classes,Printed Matter, Brochures; Magazines; Bookbinding Material; Photographs; Stationery; Adhesives For Stationery Or Household Purposes; Artists' Materials; Paint Brushes; Typwriters And Office Requisites (Except Furniture); Instructional And Teaching Material (Except Apparatus); Plastic Materials For Packaging (Not Included In Other Classes); Playing Cards; Printers Type; Printing Blocks.[Class : 37] Beneath Ground Construction Work Relating To Gas Supply Mains Beneath Ground Construction Work Relating To Gas Supply Pipes Installation Of Gas Treatment Apparatus Installation Of Pipe Systems For Conducting Of Gases Maintenance And Repair Of Apparatus For Detecting Specific Gaseous Compounds Maintenance And Repair Of Gas Installations And Equipment Repair Of Gas Cylinders Repair Of Gas Supply Systems Repair, Servicing And Installation Srvices.