Fireplaces; Lamps; Rotisseries; Acetylene burners; Air purifying apparatus and machines; Burners for lamps; Domestic cooking ovens; Economisers, namely, devices for warming feed water in heating boilers; Electric cooktops; Electric roasters; Gas burners; Germicidal lamps for purifying air; Heating apparatus for solid, liquid or gaseous fuels; Heating boilers; Heating elements; Pipes for heating boilers; Plate warmers; Roasting spits for cooking ovens; Stoves being heating apparatus; Structura...