4. Railway switches and signals
  5. Interlocking
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Automatic control system for railroad interlocking

Railway switches and signals – Interlocking – Electric actuation
Patent

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Derail wheel crowder

Railway switches and signals – Interlocking – Derails
Patent

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Hinged derail with assisted manual lifting and method for...

Railway switches and signals – Interlocking – Derails
Reexamination Certificate

  [ 0.00 ] – not rated yet Voters 0   Comments 0

In-circuit contact monitor

Railway switches and signals – Interlocking – Switch or signal indicators
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Lightweight and ultra-lightweight portable derails

Railway switches and signals – Interlocking – Derails
Patent

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Lock extension for train derail

Railway switches and signals – Interlocking – Derails
Reexamination Certificate

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Low profile derail

Railway switches and signals – Interlocking – Derails
Reexamination Certificate

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Portable derail

Railway switches and signals – Interlocking – Derails
Patent

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Tongue switch for rail installations

Railway switches and signals – Interlocking – Switch or signal indicators
Patent

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