|
US4407312A
|
|
Fare collection system and components thereof
|
|
US4376442A
|
|
Coin Assorter
|
|
US4372478A
|
|
Fare collection system and components thereof
|
|
ES280795A1
|
|
Improvements in electromagnetic releases (Machine-translation by Google Translate, not legally binding)
|
|
GB936574A
|
|
Improvements in and relating to locomotive control systems
|
|
US3046518A
|
|
Ultrasonic vehicle detector system
|
|
US3054993A
|
|
Posting and transfer system for display indicators
|
|
US3054984A
|
|
Posting and transfer system for display indicators
|
|
GB964975A
|
|
Improvements in control systems for railway locomotives or trains
|
|
GB954257A
|
|
Remote control system for railway vehicles
|
|
GB925826A
|
|
Improvements in and relating to traffic detecting systems
|
|
US3038991A
|
|
Highway crossing protection system
|
|
GB933655A
|
|
Track fullness detector system
|
|
GB908624A
|
|
Car retarders for railroads
|
|
GB964974A
|
|
Remote control system for railway locomotives or trains
|
|
US3086196A
|
|
Pulsed ultrasonic detector
|
|
US3046522A
|
|
Gate control system for automobile parking areas
|
|
US3060354A
|
|
Means for latching armatures of electromagnetic devices
|
|
US3035128A
|
|
Multiple contact devices
|
|
US3087140A
|
|
Ultrasonic vehicle detection system
|
