6
Common metals and their alloys; metal building materials; transportable buildings of metal; materials of metal for railway tracks; non-electric cables and wires of common metal; ironmongery, small items of metal hardware; pipes and tubes of metal; safes; goods of common metal, included in class 6; ores; reinforcing supports for plastic hollow chamber profiles used in window construction; u-profiles of metal with channels of punched holes being reinforcing supports; reinforcing materials of metal for building; metal fittings for buildings; metal building materials; brackets of metal for building; fittings of metal for windows; window frames of metal; window-stops of metal; insect screens of metal; architectural ironmongery; wall claddings of metal (building); nails and screws of metal; door and window lintels of metal; window catches of metal; linings of metal for window construction
17
Rubber, gutta-percha, gum, asbestos, mica and goods made from these materials and included in class 17; plastics in extruded form for use in manufacture; packing, stopping and insulating materials; flexible pipes, not of metal; expansion joint fillers; seals for window construction, included in class 17; sealing compounds for building construction; packing material for building construction; plastics in extruded form for use in manufacture, for window case profiles or window frame profiles; joint-sealing compounds for building construction; noise-insulating materials for building construction; heat-insulating materials for building construction
19
Building materials (non-metallic); non-metallic rigid pipes for building; asphalt, pitch and bitumen; non-metallic portable buildings; monuments, not of metal; reinforcing materials, not of metals, for building; outdoor blinds, not of metal and not of textile; timber; building glass; windows, not of metal; window frames, not of metal; shutters, not of metal; insect screens, not of metal; window frames and window cases, in particular in the form of plastic hollow chamber profiles; plate glass (windows), for building; Jalousies, not of metal; skylights, not of metal, for use in window construction; window and door lintels, not of metal; non-metallic frames for buildings
37
Building construction; repair; installation services; demolition of buildings; building sealing; construction information; window construction; building insulating; burglar-alarm system installation
42
Scientific and technological services and research and design relating thereto; industrial analysis and research services; design and development of computer hardware and software; architecture; architectural consultancy; civil engineering; drawing up finite element calculations for heat loss through windows; surveying in the field of window construction; construction drafting for window construction; licensing of industrial property rights; technical project planning for window construction; material testing