7
Machines and machine tools; motors and engines (except for land vehicles); machine coupling and transmission components (except for land vehicles); agricultural implements other than hand-operated; machines for cutting, cleaning, abrading, eroding and drilling; machines, machine tools and appliances utilizing liquefied nitrogen; couplings for cutting, cleaning, abrading, eroding and drilling machines; couplings for machines and machine tools utilizing liquefied nitrogen(except for land vehicles); diggers [machines]; cutting, cleaning, abrading, eroding and drilling apparatus utilizing liquefied nitrogen; apparatus for pumping and blowing liquefied gas and particularly liquefied nitrogen under pressure; hydraulic and/or pneumatic controls for machines, motors and engines; hydraulic and/or pneumatic engines and motors; compressors [machines]; pressure reducers [parts of machines]; pumps [machines]; pumps [parts of machines, engines or motors]; pump diaphragms; pressure valves [parts of machines]; high pressure machines for cutting, cleaning, abrading, eroding and drilling; atomisers, pulverisers [machines], spraying machines; regulators [parts of machines]; blowing machines or fans for the compression, sucking and splashing of liquefied gas, in particular liquefied nitrogen; cutting pipes, gas-operated
37
Repair; installation services; machinery installation, maintenance and repair; boiler cleaning and repair; contaminated material cleaning; washing; installation, maintenance, repair and rental of machines, machine tools and appliances utilizing liquefied nitrogen and of machines for cutting, cleaning, abrading, eroding and drilling; pump repair; machinery construction
40
Treatment of materials; cutting, abrading, eroding and drilling of materials; burnishing by abrasion; decontamination of hazardous materials
42
Surveying; technical project studies; research and development for others; mechanical research; technical research; engineering; all the aforesaid services relating amongst others to liquefied nitrogen and to machines, machine tools and appliances utilizing liquefied nitrogen