Household or kitchen utensils and containers (not of precious metal or coated therewith); sponges; brushes (except paint brushes): articles for cleaning purposes; unworked or semi-worked glass (except glass used in building); glassware, porcelain and earthenware not included in other classes. Objects d'art made of porcelain, baked clay, glass; non electric pressure cookers, corkscrews, dishes, pots, jars, napkin rings, centrepiece of tables (not of precious metal). Household or kitchen utensils and containers made of ceramic