Patent class list (only not empty are listed)

Railways

Subclass of: 104 - Railways

Deeper subclasses:

104002000 - TRACK LAYERS (6)
104018000 - MOVING TRAIN (1)
104027000 - TERMINALS AND STATIONS (7)
104320100 - TRUCK CHANGER (1)
104035000 - TURNTABLES (1)
104048000 - TRANSFER TABLES (1)
104053000 - AMUSEMENT (17)
104880010 - SELECTIVE DELIVERY (2)
104089000 - SUSPENDED (8)
104096000 - TROLLEY TRANSFER (1)
104106000 - TROLLEY RAILS (3)
104112000 - CABLE RAILS (6)
104118000 - MONORAIL (1)
104124000 - ELEVATED STRUCTURE (2)
104130010 - SWITCHES (6)
104138100 - TUBULAR WAY (2)
104139000 - TRUCK IN CONDUIT (2)
104281000 - MAGNETICALLY SUSPENDED CAR (11)
104287000 - CAR-CARRIED PROPULSION SYSTEM (3)
104165000 - TRACTION (9)
104249000 - CAR STOPS (1)
104279000 - TRACK CLEARERS (1)
104307000 - MISCELLANEOUS (1)

Patents in all subclasses Railways