20 FURNITURE, IN PARTICULAR METALLIC FURNITURE AND METALLIC FIXTURES IN GENERAL, FILING CABINETS, FIXED, REMOVABLE AND MOBILE METALLIC AND NON-METALLIC SHELVING AND PARTITIONS; METALLIC AND NON-METALLIC CLADDING FOR CONVECTORS, MIRRORS, PICTURE FRAMES; ARTICLES (NOT INCLUDED IN OTHER CLASSES) OF WOOD, CORK, REEDS, CANE, WICKER, HORN, BONE, IVORY, WHALEBONE, SHELL AMBER, MOTHER-OF-PEARL, MEERSCHAUM, CELLULOID, SUBSTITUTES FOR ALL THESE MATERIALS, OR OF PLASTIC