4. Railway switches and signals
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Wayside monitoring of the angle-of-attack of railway vehicle whe

Railway switches and signals – Cab signal or train control – Train defect
Patent

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Wayside oriented moving block

Railway switches and signals – Block-signal systems – Automatic
Patent

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Wayside signaling system for railroad cab signals and speed cont

Railway switches and signals – Block-signal systems – Automatic
Patent

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Welded nose rail used for crossing

Railway switches and signals – Crossings – frogs – and mates
Patent

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Wheel detection and classification system for railroad data...

Railway switches and signals – Train-position indication – Miniature model
Reexamination Certificate

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Wing rail hold-down

Railway switches and signals – Vehicle-energy actuation – Continuous-rail frogs
Patent

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Yard tracking system

Railway switches and signals – Train-position indication – Train annunciators or indicators
Reexamination Certificate

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