7
Machines and machine tools; motors and engines (except for land vehicles); machine couplings and transmission components (except for land vehicles); agricultural implements other than hand-operated; pumps (machines), pumps (parts of machines, engines and motors), pumps for heating installations; vacuum pumps (machines), heat exchangers (parts of machines), water heaters (parts of machines); valves (parts of machines); superheaters; aerators; parts and fittings for the afore-mentioned goods included in this class, but excluding parts and fittings for ventilating bells
11
Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, water supply and sanitary purposes; heat pumps, heating boilers, air reheaters, heat regenerators, heat exchangers (not parts of machines), heating installations, water heaters (apparatus), valves (parts of heating installations), parts and fittings for the afore-mentioned goods included in this class; but excluding any sanitary installations, namely heat exchangers with parts and fittings (not parts of machines) for cold and hot fluids and exluding ventilating bells and their parts
42
Scientific and technological services and research and design relating thereto; design and development of heating systems and air conditioning and ventilation systems; technical engineering, information, consultancy and advisory services related to hearing systems and air conditioning and ventilation systems; technical project studies, quality control, material testing, but excluding services directly related to ventilating bells and their parts