12 Trolleys; trough-shaped trolleys, not for sports, serving, tea or medical purposes; transport trolleys, not for sports, serving, tea or medical purposes; counter clearing trolleys, not for sports, serving, tea or medical purposes; trolleys with trays, not for sports, serving, tea or medical purposes; hook trolleys, not for sports, serving, tea or medical purposes; transport trolleys for use in industry; warehouse trolleys; warehouse trolleys of metal