4. Railway switches and signals
  5. Signals
  6. Highway crossing

Donald L. LeVoir

Inventor

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Railroad crossing gate control system including a separate maint

Electricity: motive power systems – Automatic and/or with time-delay means – Movement – position – or limit-of-travel
Patent

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Railroad crossing gate mechanism control system

Electricity: motive power systems – Motor-reversing
Patent

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Railroad gate arm lamp circuit

Railway switches and signals – Signals – Highway crossing
Patent

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Profile ID: LFUS-PAI-P-864176

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