19 SPACE FRAMEWORKS FOR BUILDINGS IN THE FORM OF ROOF STRUCTURES, INCLUDING DOMES, CEILINGS, WALLS, SHEDS, AEROPLANE HANGARS, GREENHOUSES, TOWERS INCLUDING DRILLING TOWERS AND COOLING TOWERS AS WELL AS TOWERS FOR CHEMICAL PLANTS, BRIDGES, PYLONS, ROSTRA, STANDS, SALES STANDS, WING STRUCTURES AND SIMILAR STRUCTURES FOR THEATRES, FILMS, TELEVISION, ADVERTISING, SCAFFOLDING, MAINTENANCE FRAMEWORKS FOR AEROPLANES, LAND AND WATER VEHICLES, LARGE STATIONARY AND MOBILE MACHINES OF ALL TYPES, CRANES; CONSTRUCTION ELEMENTS FOR SPACE FRAMEWORKS-NAMELY, STRUCTURAL PANELS MADE OF WOOD OR MINERAL BUILDING ELEMENTS SUCH AS CONCRETE ALONE OR IN COMBINATION WITH OTHER MATERIALS; COMPLETE STRUCTURES CONSISTING OF PREFABRICATED ELEMENTS FOR APARTMENTS, INDUSTRIAL AND TECHNICAL PURPOSES, SPORTS, RECREATIONAL FACILITIES, TRADE PURPOSES AND FOOD SUPPLIES; PREFABRICATED ELEMENTS IN THE FORM OF WALLS, FLOORS AND CEILING ELEMENTS, WINDOWS, DOORS AND FACING ELEMENTS FOR BUILDINGS, ALSO WITH INCORPORATED SANITARY AND OTHER INSTALLATIONS