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Crossing control unit

Railway switches and signals – Signals – Highway crossing
Patent

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Electronically controlled grade crossing gate system and method

Railway switches and signals – Signals – Highway crossing
Reexamination Certificate

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Highway railroad crossing vehicle detection methods and systems

Railway switches and signals – Signals – Highway crossing
Reexamination Certificate

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Method for producing a railway crossing warning signal

Railway switches and signals – Signals – Highway crossing
Patent

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Railroad gate arm lamp circuit

Railway switches and signals – Signals – Highway crossing
Patent

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Remote monitoring of grade crossing warning equipment

Railway switches and signals – Signals – Highway crossing
Reexamination Certificate

  [ 0.00 ] – not rated yet Voters 0   Comments 0

System, method and apparatus for railroad gate flasher...

Railway switches and signals – Signals – Highway crossing
Reexamination Certificate

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