Data transmission device between trains circulating on a...

Data transmission system

Decoding system

Decoupling arrangement for non-insulated ac track circuits...

Deflection rail contactor

Delivery system with single-propelled cars or groups of cars...

Desired velocity control for passenger vehicles

Detection of end zones in alternating track circuits

Detector of vehicle presence and passage

Detector track circuit for railroad crossings

Device and process for locating a railway vehicle along a...

Device for changing points

Device for checking the end positions of movable parts of a...

Device for detecting the positions of pivotable parts of a...

Device for determining lateral and/or vertical deviations in...

Device for determining the condition of railway switches or...

Device for determining the length of a train of vehicles

Device for displacing the moveable parts of rail switches or...

Device for localising a vehicle moving along electromagnetic...

Device for locking a switch blade