4. Railway switches and signals
  5. Block-signal systems
  6. Automatic

Richard V. Peel

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AC and battery backup supply for a railroad crossing gate

Railway switches and signals – Electric automatic highway signals – mine doors – and gates
Patent

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Multi-frequency railroad grade crossing termination shunt assemb

Railway switches and signals – Electric automatic highway signals – mine doors – and gates – Car-actuated controller
Patent

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Railroad crossing motion sensing system

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

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Profile ID: LFUS-PAI-P-490062

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