Patent class list (only not empty are listed)

Bridges

Subclass of: 014 - Bridges

Deeper subclasses:

014200400 - TRANSPORTABLE (8)
014003000 - TRUSS (1)
014018000 - SUSPENSION (3)
014024000 - ARCH (1)
014690500 - GANGWAY, RAMP, OR DOCK LEVELER (39)
014073000 - DECK (3)
014740500 - GIRDER (2)
014075000 - PIER (1)
014770100 - BRIDGE CONSTRUCTION METHOD (3)

Patents in all subclasses Bridges