Articles of glass for building purposes; Building glass; Building materials consisting of glass; Building materials of glass; Folding walls of glass; Glass doors; Glass elements for building panels; Glass elements for windows; Glass for use in buildings; Glass for windows; Glass for windows in buildings; Glass louvres for doors; Glass louvres for windows; Glass panels for doors; Glass sheet for use in building; Glass slabs for use in building; Glass tiles; Glass walls; Glass windows; Glass-reinforced plastic doors; Glazing elements made from glass; Heat protective glass for building; Heat reflecting glass for building; Infrared reflective glass for use in building; Insulating glass for building; Reinforced glass for building; Safety glass; Safety glass for building; Sealed insulating glass units for building; Security glass for use in building; Sheet glass for use in building; Sheets of glass for building; Tempered glass for use in building; Thermal insulating glass for use in building; Tinted glass for use in building; Toughened glass for building; Transparent doors of glass for buildings; Window glass, for building; Windows made of laminated safety glass for buildings; Windows made principally of glass