20 CABINETS, [ TABLES, FILES, ] FILE CABINETS; INDEXING, RECORDING, AND FILING SYSTEMS COMPRISING CABINETS, CASES, TRAYS, DRAWERS, [ STANDS, ] AND PARTS THEREOF; AND RECORD, INDEX, [ BULLETIN, ] AND CARD HOLDING BOARDS, [ RACKS, BRACKETS, ] TRAYS, [ AND FRAMES; ] ALL CONSTITUTING OFFICE FURNITURE