4. Railway switches and signals
  5. Switch stands
  6. Structural types

Norfolk Southern Corporation

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Directional reference for trailing locomotives and railroad...

Railway rolling stock – Locomotives – Electric
Statutory Invention Registration

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Method and apparatus for monitoring wheel/brake performance

Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – Railway vehicle
Reexamination Certificate

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Optical rail gage/wear system

Optics: measuring and testing – By polarized light examination – With light attenuation
Patent

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Railroad switch stand having improved handle means

Railway switches and signals – Switch stands – Structural types
Patent

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Range-finding based image processing rail way servicing...

Railways – Track layers
Reexamination Certificate

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Profile ID: LFUS-PAI-P-412214

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