11 Lighting apparatus, namely, lighting installations; Heating installations; Air cooling apparatus; Installations for cooling water; Steam generating installations; Apparatus for steam generating; Drying apparatus for use in heating, ventilation systems, air conditioning systems and refrigeration systems; Air-conditioning, air cooling and ventilation apparatus and instruments; Apparatus and installations for cooking, drying, water supply and sanitary purposes, namely, air-conditioning apparatus and installations, cooking ovens, microwave ovens, bakers' ovens, stoves being heating apparatus, lighting apparatus and installations being luminous tubes for lighting, searchlights, electric lamps, gas lamps, laboratory lamps, oil lamps, street lamps, safety lamps, bread-making machines