Cooking and heating apparatus; industrial and domestic water heating installations; hot water apparatus; air conditioning installations; installations for central heating; industrial air heating and cooling apparatus; radiators for buildings; ventilating installations and apparatus; sterilizing utensils, being goods included in this class; pie warmers, saveloy warmers, bain maries, kitchen equipment for cooking and heating purposes, such as steam jacketted fans, hot presses consisting of a metalbench having associated therewith racks and chambers for warming, and keeping warm, plates, foodstuffs, and the like; metal steam cookers, calorifiers, unit heaters for factory heating; metal water heaters for domestic and general use (not being in the form of small boilers) manufactures of sheet metal, comprising mainly air ducts of metal used for distributing air and vapour for ventilating And warming purposes; apparatus of the "panel system" which comparise metal coils fitted during the construction of buildings and usually between the ceilings and floors, and/or between the walls, and used for heating purposes; hot water service installations; septic tanks including tanks of metal and concrete, and also of metal and brickwork, concrete and brickwork predominating; hospital equipment, for cooking and heating purposes and including sterilizers for use for a variety of purposes; dish washers (not being in the form of small machines)separately and as part of general kitchen and cooking equipment; boilers for heating water for domestic, hospital, cafe, hotels and general purposes (not being in the form of small boilers) mechanical bed pan washers, for hospital and general purposes; cafe fountains in the nature of apparatus fosupplying hot water for various purposes

Cafeteria counters being steel framed constructions provided with metal tops,